Public Version
General-Purpose Memory Controller
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Bits
Field Name
Description
Type
Reset
31:21
RESERVED
Write 0s for future compatibility. Read returns 0s.
RW
0x000
20:16
ADVWROFFTIME
nADV de-assertion time from start cycle time for write accesses
RW
0x02
0x00: 0 GPMC_FCLK cycle
0x01: 1 GPMC_FCLK cycle
...
0x1F: 31 GPMC_FCLK cycles
15:13
RESERVED
Write 0s for future compatibility. Read returns 0s.
RW
0x0
12:8
ADVRDOFFTIME
nADV de-assertion time from start cycle time for read accesses
RW
0x02
0x00: 0 GPMC_FCLK cycle
0x01: 1 GPMC_FCLK cycle
...
0x1F: 31 GPMC_FCLK cycles
7
ADVEXTRADELAY
nADV Add Extra Half GPMC_FCLK cycle
RW
0x0
0x0: nADV Timing control signal is not delayed
0x1: nADV Timing control signal is delayed of half GPMC_FCLK
clock cycle
6:4
RESERVED
Write 0s for future compatibility. Read returns 0s.
RW
0x0
3:0
ADVONTIME
nADV assertion time from start cycle time
RW
0x1
0x0: 0 GPMC_FCLK cycle
0x1: 1 GPMC_FCLK cycle
...
0xF: 15 GPMC_FCLK cycles
Table 10-54. Register Call Summary for Register GPMC_CONFIG3_i
General-Purpose Memory Controller
•
:
•
Asynchronous Access Description
:
•
•
Table 10-55. GPMC_CONFIG4_i
Address Offset
0x0000 006C + (0x0000 0030 * i) Index
i = 0 to 7
Physical Address
0x6E00 006C + (0x0000 0030 * i) Instance
GPMC
Description
nWE and nOE signals timing parameter configuration
Type
RW
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
WEOFFTIME
WEONTIME
OEOFFTIME
OEONTIME
RESERVED
RESERVED
RESERVED
RESERVED
OEEXTRADELAY
WEEXTRADELAY
Bits
Field Name
Description
Type
Reset
31:29
RESERVED
Write 0s for future compatibility. Read returns 0s.
RW
0x0
28:24
WEOFFTIME
nWE de-assertion time from start cycle time
RW
0x10
0x00: 0 GPMC_FCLK cycle
0x01: 1 GPMC_FCLK cycle
...
0x1F: 31 GPMC_FCLK cycles
23
WEEXTRADELAY
nWE Add Extra Half GPMC_FCLK cycle
RW
0x0
0x0: nWE Timing control signal is not delayed
0x1: nWE Timing control signal is delayed of half GPMC_FCLK
clock cycle
2208
Memory Subsystem
SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated