MC68HC711KS2MFN4 Freescale Semiconductor, MC68HC711KS2MFN4 Datasheet - Page 244

• Manufacturer Part Number: MC68HC711KS2MFN4
• Description: 32K EPROM - SLOW MODE
• Manufacturer: Freescale Semiconductor

Memory Expansion and Chip Selects
11.4.3.3 General-Purpose Chip Select 1 Control Register
Technical Data
244
Address: $005D
G1POL — General-Purpose Chip Select 1 Polarity Select Bit
G1AV — General-Purpose Chip Select 1 Address Valid Select Bit
G1SZ[A:D] — General-Purpose Chip Select 1 Size Bits
Reset:
Read:
Write:
They select the range of GPCS1. Refer to
G1SZ[A:D]
1100–1111
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
0 = CSGP1 active low
1 = CSGP1 active high
0 = CSGP1 is valid during E high time.
1 = CSGP1 is valid during address valid time.
Table 11-6. General-Purpose Chip Select 1 Size Control
G1DG2
Memory Expansion and Chip Selects
Bit 7
0
Figure 11-9. General-Purpose Chip Select 1
G1DPC
6
0
Follow window 1
Follow window 2
Default to 512 K
Control Register (GPCS1C)
Size (Bytes)
Disabled
128 K
256 K
512 K
16 K
32 K
64 K
G1POL
2 K
4 K
8 K
5
0
G1AV
4
0
(MXGS1 = 0)
G1A[15:11]
G1A[15:11]
G1A[15:13]
G1A[15:14]
G1SZA
Valid Bits
G1A[15]
3
0
None
None
None
None
None
None
None
None
Table
G1SZB
2
0
11-6.
M68HC11K Family
G1SCC
(MXGS1 = 1)
G1A[18:12]
G1A[18:13]
G1A[18:14]
G1A[18:15]
G1A[18:16]
G1A[18:17]
G1A[18:11]
Valid Bits
1
0
G1A18
None
None
None
None
None
MOTOROLA
G1SZD
Bit 0
0