Functional Overview

The APB registers smc_set_cycles and smc_set_opmode act as holding registers, the configuration registers within the manager are only updated if either:

the smc_direct_cmd Register indicates only a register update is taking place

the smc_direct_cmd Register indicates either a modereg operation or an memory access has taken place, and is complete.

The chip configuration registers are available as read only registers in the address map of the APB interface.

DSEBLI

PDQDJHU

PHPFBFIJ

VHWF\FOHV

VHWRSPRGH

' 4

FKLSF\FOHV

FKLSRSPRGH

' 4

FKLSBFIJ

FKLSF\FOHV

FKLSRSPRGH

' 4

FKLSBFIJ

FKLSF\FOHV

FKLSRSPRGH

' 4

FKLSBFIJ

FKLSF\FOHV

FKLSRSPRGH

' 4

FKLSBFIJ

Figure 2-11 Chip configuration registers

ARM DDI 0389B

Copyright © 2006 ARM Limited. All rights reserved.

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SMC Networks AHB SRAM/NOR, PL241 manual Chip configuration registers