Using the Memory Controller Interface - Revision history

Ogamal: /* Memory Controller Interface functionality */

2013-02-06T00:11:09Z

Memory Controller Interface functionality

← Older revision		Revision as of 00:11, 6 February 2013
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	* The data from the two even and odd ports are multiplexed onto the same 300 MHz channel in the MC interface.		* The data from the two even and odd ports are multiplexed onto the same 300 MHz channel in the MC interface.
	* Each of the even and odd ports has its request signals and response signals.		* Each of the even and odd ports has its request signals and response signals.
	* Refer to section 9.3.3.1 in the PDK reference manual for further ~~informations~~.		* Refer to section 9.3.3.1 in the PDK reference manual for further information.

	== Memory Controller Interface Signals ==		== Memory Controller Interface Signals ==

Ogamal: /* Reading from Memory */

2013-02-06T00:00:13Z

Reading from Memory

← Older revision		Revision as of 00:00, 6 February 2013
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	* The <code>'''mc'''''i''_req_size_*<1:0></code> is used to indicate if you want to read a byte, word, double-word or quad-word (i.e. 0x0 for byte, and 0x3 for quad-word).		* The <code>'''mc'''''i''_req_size_*<1:0></code> is used to indicate if you want to read a byte, word, double-word or quad-word (i.e. 0x0 for byte, and 0x3 for quad-word).
	* You can get requested data from the <code>'''mc'''''i''_rsp_data_<63:0></code> bus when the signal <code>'''mc'''''i''_rsp_push_</code> is asserted.		* You can get requested data from the <code>'''mc'''''i''_rsp_data_<63:0></code> bus when the signal <code>'''mc'''''i''_rsp_push_</code> is asserted.
	* The lower 31 bits of <code>'''mc'''''i''_req_wrd_rdctl_*<63:0></code> will be returned as <code>'''mc'''''i''_rsp_rdctl_o<31:0></code>. You should set it while requesting a read and check it in the response to identify your request.		* The lower 32 bits of <code>'''mc'''''i''_req_wrd_rdctl_*<63:0></code> will be returned as <code>'''mc'''''i''_rsp_rdctl_o<31:0></code>. You should set it while requesting a read and check it in the response to identify your request.

	== Writing to Memory ==		== Writing to Memory ==

Ogamal: /* Reading from Memory */

2013-02-06T00:00:02Z

Reading from Memory

← Older revision		Revision as of 00:00, 6 February 2013
Line 46:		Line 46:
	* The <code>'''mc'''''i''_req_size_*<1:0></code> is used to indicate if you want to read a byte, word, double-word or quad-word (i.e. 0x0 for byte, and 0x3 for quad-word).		* The <code>'''mc'''''i''_req_size_*<1:0></code> is used to indicate if you want to read a byte, word, double-word or quad-word (i.e. 0x0 for byte, and 0x3 for quad-word).
	* You can get requested data from the <code>'''mc'''''i''_rsp_data_<63:0></code> bus when the signal <code>'''mc'''''i''_rsp_push_</code> is asserted.		* You can get requested data from the <code>'''mc'''''i''_rsp_data_<63:0></code> bus when the signal <code>'''mc'''''i''_rsp_push_</code> is asserted.
	* The lower 31 bits of <code>'''mc'''''i''_req_wrd_rdctl_<63:0></code> will be returned as <code>'''mc'''''i''_req_wrd_rdctl_<63:0></code>. You should set it while requesting a read and check it in the response to identify your request.		* The lower 31 bits of <code>'''mc'''''i''_req_wrd_rdctl_*<63:0></code> will be returned as <code>'''mc'''''i''_rsp_rdctl_o<31:0></code>. You should set it while requesting a read and check it in the response to identify your request.

	== Writing to Memory ==		== Writing to Memory ==

Ogamal: /* Reading from Memory */

2013-02-05T23:59:19Z

Reading from Memory

← Older revision		Revision as of 23:59, 5 February 2013
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	* To request a read from memory, you have to assert the signal <code>'''mc'''''i''_req_ld_</code> and put the address of the data you want to read on the port <code>'''mc'''''i''_req_vadr_</code>.		* To request a read from memory, you have to assert the signal <code>'''mc'''''i''_req_ld_</code> and put the address of the data you want to read on the port <code>'''mc'''''i''_req_vadr_</code>.
	* The <code>'''mc'''''i''_req_size_*<1:0></code> is used to indicate if you want to read a byte, word, double-word or quad-word (i.e. 0x0 for byte, and 0x3 for quad-word).		* The <code>'''mc'''''i''_req_size_*<1:0></code> is used to indicate if you want to read a byte, word, double-word or quad-word (i.e. 0x0 for byte, and 0x3 for quad-word).
	* ~~The MC interface will respond with the~~ data on the <code>'''mc'''''i''_rsp_data_*<63:0></code> bus.		* You can get requested data from the <code>'''mc'''''i''_rsp_data_<63:0></code> bus when the signal <code>'''mc'''''i''_rsp_push_</code> is asserted.
	* The lower 31 bits of <code>'''mc'''''i''_req_wrd_rdctl_<63:0></code> will be returned as <code>'''mc'''''i''_req_wrd_rdctl_<63:0></code>. You should set it while requesting a read and check it in the response to identify your request.		* The lower 31 bits of <code>'''mc'''''i''_req_wrd_rdctl_<63:0></code> will be returned as <code>'''mc'''''i''_req_wrd_rdctl_<63:0></code>. You should set it while requesting a read and check it in the response to identify your request.

Ogamal: /* Writing to Memory */

2013-02-05T23:57:46Z

Writing to Memory

← Older revision		Revision as of 23:57, 5 February 2013
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	== Writing to Memory ==		== Writing to Memory ==
	* Before requesting any ~~read from~~ the memory, you have to make sure that <code>'''mc'''''i''_wr_rq_stall_* = '0'</code>.		* Before requesting any write to the memory, you have to make sure that <code>'''mc'''''i''_wr_rq_stall_* = '0'</code>.
	* To request a write to memory, you have to assert the signal <code>'''mc'''''i''_req_st_</code> and put the address of the data you want to write to on the port <code>'''mc'''''i''_req_vadr_</code>.		* To request a write to memory, you have to assert the signal <code>'''mc'''''i''_req_st_</code> and put the address of the data you want to write to on the port <code>'''mc'''''i''_req_vadr_</code>.
	* The <code>'''mc'''''i''_req_size_*<1:0></code> is used to indicate the size as in the read scenario above.		* The <code>'''mc'''''i''_req_size_*<1:0></code> is used to indicate the size as in the read scenario above.

Ogamal at 23:49, 5 February 2013

2013-02-05T23:49:17Z

← Older revision		Revision as of 23:49, 5 February 2013
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	* The <code>'''mc'''''i''_req_size_*<1:0></code> is used to indicate the size as in the read scenario above.		* The <code>'''mc'''''i''_req_size_*<1:0></code> is used to indicate the size as in the read scenario above.
	* The data you want to write should goes on <code>'''mc'''''i''_req_wrd_rdctl_*<63:0></code> bus.		* The data you want to write should goes on <code>'''mc'''''i''_req_wrd_rdctl_*<63:0></code> bus.

			== References ==
			* [[Media:ConveyPDKReferenceManual.pdf \| Convey PDK Reference Manual (.pdf)]] - Sections 9.3.3

Ogamal: /* Memory Controller Interface functionality */

2013-02-05T23:47:48Z

Memory Controller Interface functionality

← Older revision		Revision as of 23:47, 5 February 2013
Line 4:		Line 4:
	* The data from the two even and odd ports are multiplexed onto the same 300 MHz channel in the MC interface.		* The data from the two even and odd ports are multiplexed onto the same 300 MHz channel in the MC interface.
	* Each of the even and odd ports has its request signals and response signals.		* Each of the even and odd ports has its request signals and response signals.
	* Refer to section 9.3.3.1 in the PDK for further informations.		* Refer to section 9.3.3.1 in the PDK reference manual for further informations.

	== Memory Controller Interface Signals ==		== Memory Controller Interface Signals ==

Ogamal: /* Reading from Memory */

2013-02-05T23:45:41Z

Reading from Memory

← Older revision		Revision as of 23:45, 5 February 2013
Line 45:		Line 45:
	* To request a read from memory, you have to assert the signal <code>'''mc'''''i''_req_ld_</code> and put the address of the data you want to read on the port <code>'''mc'''''i''_req_vadr_</code>.		* To request a read from memory, you have to assert the signal <code>'''mc'''''i''_req_ld_</code> and put the address of the data you want to read on the port <code>'''mc'''''i''_req_vadr_</code>.
	* The <code>'''mc'''''i''_req_size_*<1:0></code> is used to indicate if you want to read a byte, word, double-word or quad-word (i.e. 0x0 for byte, and 0x3 for quad-word).		* The <code>'''mc'''''i''_req_size_*<1:0></code> is used to indicate if you want to read a byte, word, double-word or quad-word (i.e. 0x0 for byte, and 0x3 for quad-word).
			* The MC interface will respond with the data on the <code>'''mc'''''i''_rsp_data_*<63:0></code> bus.
	* The lower 31 bits of <code>'''mc'''''i''_req_wrd_rdctl_<63:0></code> will be returned as <code>'''mc'''''i''_req_wrd_rdctl_<63:0></code>. You should set it while requesting a read and check it in the response to identify your request.		* The lower 31 bits of <code>'''mc'''''i''_req_wrd_rdctl_<63:0></code> will be returned as <code>'''mc'''''i''_req_wrd_rdctl_<63:0></code>. You should set it while requesting a read and check it in the response to identify your request.

Ogamal at 23:37, 5 February 2013

2013-02-05T23:37:35Z

← Older revision		Revision as of 23:37, 5 February 2013
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	== Writing to Memory ==		== Writing to Memory ==
			* Before requesting any read from the memory, you have to make sure that <code>'''mc'''''i''_wr_rq_stall_* = '0'</code>.
			* To request a write to memory, you have to assert the signal <code>'''mc'''''i''_req_st_</code> and put the address of the data you want to write to on the port <code>'''mc'''''i''_req_vadr_</code>.
			* The <code>'''mc'''''i''_req_size_*<1:0></code> is used to indicate the size as in the read scenario above.
			* The data you want to write should goes on <code>'''mc'''''i''_req_wrd_rdctl_*<63:0></code> bus.

Ogamal: /* Reading from Memory */

2013-02-05T23:24:45Z

Reading from Memory

← Older revision		Revision as of 23:24, 5 February 2013
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	== Reading from Memory ==		== Reading from Memory ==
	Before requesting any read from the memory, you have to make sure that <code>'''mc'''''i''_rd_rq_stall_* = '0'</code>, where <code>i</code> is the MC interface port number (could be from 0 to 7). To request a read from memory, you have to assert the signal <code>'''mc'''''i''_req_ld_</code> and put the address of the data you want to read on the port <code>'''mc'''''i''_req_vadr_</code>.		* Before requesting any read from the memory, you have to make sure that <code>'''mc'''''i''_rd_rq_stall_* = '0'</code>, where <code>i</code> is the MC interface port number (could be from 0 to 7).
			* To request a read from memory, you have to assert the signal <code>'''mc'''''i''_req_ld_</code> and put the address of the data you want to read on the port <code>'''mc'''''i''_req_vadr_</code>.
			* The <code>'''mc'''''i''_req_size_*<1:0></code> is used to indicate if you want to read a byte, word, double-word or quad-word (i.e. 0x0 for byte, and 0x3 for quad-word).
			* The lower 31 bits of <code>'''mc'''''i''_req_wrd_rdctl_<63:0></code> will be returned as <code>'''mc'''''i''_req_wrd_rdctl_<63:0></code>. You should set it while requesting a read and check it in the response to identify your request.

	== Writing to Memory ==		== Writing to Memory ==