MMC2107 Datasheet, PDF (524/618 Pages) –

Freescale Semiconductor, Inc.
Chip Select Module
20.5 Signals
Table 20-1 provides an overview of the signals described here.
Name
CS0
CS1
CS2
CS3
Table 20-1. Signal Properties
Function
Chip select 0 pin
Chip select 1 pin
Chip select 2 pin
Chip select 3 pin
Reset State
1
1
1
1
Pullup
Active
Active
Active
Active
CS[3:0] are chip-select outputs. CS[3:0] are available for
general-purpose input/output (I/O) when not configured for chip select
operation.
20.6 Memory Map and Registers
Table 20-2 shows the chip select memory map. The registers are
described in 20.6.2 Registers.
20.6.1 Memory Map
Table 20-2. Chip Select Memory Map
Address
Bits 31–16
Bits 15–0
Access^{(1), (2)}
0x00c2_0000 CSCR0 — chip select control register 0 CSCR1 — chip select control register 1
S
0x00c2_0004 CSCR2 — chip select control register 2 CSCR3 — chip select control register 3
S
1. User mode accesses to supervisor-only address locations have no effect and result in a cycle termination transfer error.
2. S = CPU supervisor mode access only.
Technical Data
524
Chip Select Module
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MMC2107 – Rev. 2.0
MOTOROLA