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

Table 22-9

. For each chip select, a set of 4 registers is used to pro-

gram the parameters of the external device connected on it. In

Table 22-9

, “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

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