mc68hc11k4 Freescale Semiconductor, Inc, mc68hc11k4 Datasheet - Page 243

• Manufacturer Part Number: mc68hc11k4
• Description: Mc68hc11k1 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

11.4.3.1 Memory Mapping Size Register
11.4.3.2 General-Purpose Chip Select 1 Address Register
M68HC11K Family
MOTOROLA
Address: $0056
Address: $005C
MXGS2 — Memory Expansion Select for GPCS 2 Bit
MXGS1 — Memory Expansion Select for GPCS 1 Bit
G1A[18:11] — General-Purpose Chip Select 1 Address Bits
Reset:
Reset:
Read:
Read:
Write:
Write:
They select the starting address of GPCS1. Refer to
Freescale Semiconductor, Inc.
For More Information On This Product,
0 = GPCS 2 based on 64-Kbyte CPU address
1 = GPCS 2 based on expansion address
0 = GPCS 1 based on 64-Kbyte CPU address
1 = GPCS 1 based on expansion address
Figure 11-7. Memory Mapping Size Register (MMSIZ)
MXGS2
G1A18
Memory Expansion and Chip Selects
Bit 7
Bit 7
0
0
Figure 11-8. General-Purpose Chip Select 1
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MXGS1
G1A17
6
0
6
0
Address Register (GPCS1A)
W2SZ1
G1A16
5
0
5
0
W2SZ0
G1A15
4
0
4
0
Memory Expansion and Chip Selects
G1A14
3
0
0
3
0
G1A13
2
0
0
2
0
Table
W1SZ1
G1A12
1
0
1
0
Technical Data
Chip Selects
11-6.
W1SZ0
G1A11
Bit 0
Bit 0
0
0
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