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8XC196MC, MD, MH USER'S MANUAL
WSR
WSR
The window selection register (WSR) maps sections of RAM into the top of the lower register file, in
32-, 64-, or 128-byte increments. PUSHA saves this register on the stack and POPA restores it.
7
—
W6
Bit
Bit
Number
Mnemonic
7
—
6:0
W6:0
Table C-12. WSR Settings and Direct Addresses for Windowable SFRs
Register Mnemonic
AD_COMMAND
AD_RESULT
AD_TEST
AD_TIME
COMP0_CON
COMP1_CON
COMP2_CON
COMP3_CON
COMP4_CON (MD)
COMP5_CON (MD)
†
COMP0_TIME
†
COMP1_TIME
†
COMP2_TIME
†
COMP3_TIME
†
COMP4_TIME
(MD)
†
COMP5_TIME
(MD)
EPA0_CON
†
EPA1_CON
†
Must be addressed as a word.
C-68
W5
W4
Reserved; for compatibility with future devices, write zero to this bit.
Window Selection
These bits specify the window size and number. Table C-12 shows the WSR
settings and direct addresses for windowable SFRs.
32-byte Windows
(00E0–00FFH)
Memory
Location
Direct
WSR
Address
1FACH
7DH
00ECH
1FAAH
7DH
00EAH
1FAEH
7DH
00EEH
1FAFH
7DH
00EFH
1F58H
7AH
00F8H
1F5CH
7AH
00FCH
1F60H
7BH
00E0H
1F64H
7BH
00E4H
1F68H
7BH
00E8H
1F6CH
7BH
00ECH
1F5AH
7AH
00FAH
1F5EH
7AH
00FEH
1F62H
7BH
00E2H
1F66H
7BH
00E6H
1F6AH
7BH
00EAH
1F6EH
7BH
00EEH
1F40H
7AH
00E0H
1F44H
7AH
00E4H
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Address:
Reset State:
W3
W2
Function
64-byte Windows
(00C0–00FFH)
Direct
WSR
Address
3EH
00ECH
3EH
00EAH
3EH
00EEH
3EH
00EFH
3DH
00D8H
3DH
00DCH
3DH
00E0H
3DH
00E4H
3DH
00E8H
3DH
00ECH
3DH
00DAH
3DH
00DEH
3DH
00E2H
3DH
00E6H
3DH
00EAH
3DH
00EEH
3DH
00C0H
3DH
00C4H
0014H
00H
0
W1
W0
128-byte Windows
(0080–00FFH)
Direct
WSR
Address
1FH
00ACH
1FH
00AAH
1FH
00AEH
1FH
00AFH
1EH
00D8H
1EH
00DCH
1EH
00E0H
1EH
00E4H
1EH
00E8H
1EH
00ECH
1EH
00DAH
1EH
00DEH
1EH
00E2H
1EH
00E6H
1EH
00EAH
1EH
00EEH
1EH
00C0H
1EH
00C4H
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