14 static memory controller (smc) user interface – Rainbow Electronics AT91CAP9S250A User Manual
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6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
22.14 Static Memory Controller (SMC) User Interface
The SMC is programmed using the registers listed in
. For each chip select, a set of 4 registers is used to pro-
gram the parameters of the external device connected on it. In
, “CS_number” denotes the chip select number.
16 bytes (0x10) are required per chip select.
The user must complete writing the configuration by writing any one of the SMC_MODE registers.
Table 22-9.
SMC Register Mapping
Offset
Register
Name
Access Reset
State
0x10 x CS_number + 0x00
SMC Setup Register SMC_SETUP
Read/Write
0X01010101
0x10 x CS_number + 0x04
SMC Pulse Register
SMC_PULSE
Read/Write
0X01010101
0x10 x CS_number + 0x08
SMC Cycle Register
SMC_CYCLE
Read/Write
0X00030003
0x10 x CS_number + 0x0C
SMC Mode Register
SMC_MODE
Read/Write
0X10001000