Chapter 23 Memory Mapping Control (S12XMMCV2)
MC9S12XDP512 Data Sheet, Rev. 2.11
884 Freescale Semiconductor
23.3 Memory Map and Registers

23.3.1 Module Memory Map

A summary of the registers associated with the MMC block is shown in Figure 1-2. Detailed descriptions

of the registers and bits are given in the subsections that follow.

Address Register
Name Bit 7 654321Bit 0
0x000A MMCCTL0 R 0000
CS3E CS2E CS1E CS0E
W
0x000B MODE R MODC MODB MODA 00000
W
0x0010 GPAGE R 0 GP6 GP5 GP4 GP3 GP2 GP1 GP0
W
0x0011 DIRECT R DP15 DP14 DP13 DP12 DP11 DP10 DP9 DP8
W
0x0012 Reserved R 00000000
W
0x0013 MMCCTL1 R 00000
EROMON ROMHM ROMON
W
0x0014 Reserved R 00000000
W
0x0015 Reserved R 00000000
W
0x0016 RPAGE R RP7 RP6 RP5 RP4 RP3 RP2 RP1 RP0
W
0x0017 EPAGE R EP7 EP6 EP5 EP4 EP3 EP2 EP1 EP0
W
0x0030 PPAGE R PIX7 PIX6 PIX5 PIX4 PIX3 PIX2 PIX1 PIX0
W
0x0031 Reserved R 00000000
W
= Unimplemented or Reserved
Figure 23-2. MMC Register Summary