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TMP92CZ26A
92CZ26A-211
3.9.2.3 Read-data bank register
The bank number used as read-data memory is set to these registers. The following is an
example which read data bank register of LOCAL-X is set to “1”. When “ldw wa, (xix)”
instruction is executed, the bank becomes effective at only read data (operand) for xix address.
(Example)
ld xix, 200000h ;
ld (localrx), 8001h ; Set Read data bank.
ldw wa,(localrx)
; <----Insert dummy instruction that access to SFR
ldw wa, (xix) ; Read bank1 of LOCAL-X area
LOCAL-X register for read
7 6 5 4 3 2 1 0
bit Symbol X7 X6 X5 X4 X3 X2 X1 X0
Read/Write R/W
After reset 0 0 0 0 0 0 0 0
Function Set BANK number for LOCAL-X (“0” is disabled because of overlapped with Common-area.)
15 14 13 12 11 10 9 8
bit Symbol LXE X8
Read/Write R/W R/W
After reset 0 0
Function
BANK for
LOCALX
0: Disable
1: Enable
Set BANK number for LOCAL-X
X8-X0 setting and CS
000000000 to 011111111 CSXA
100000000 to 111111111 CSXB
LOCAL-Y register for read
7 6 5 4 3 2 1 0
bit Symbol Y5 Y4 Y3 Y2 Y1 Y0
Read/Write R/W
After reset 0 0 0 0 0 0
Function
Set BANK number for LOCAL-Y
(“3” is disabled because of overlapped with Common-area.)
15 14 13 12 11 10 9 8
bit Symbol LYE
Read/Write R/W
After reset 0
Function
BANK for
LOCALY
0: Disable
1: Enable
LOCAL-Z register for read
7 6 5 4 3 2 1 0
bit Symbol Z7 Z6 Z5 Z4 Z3 Z2 Z1 Z0
Read/Write R/W
After reset 0 0 0 0 0 0 0 0
Function Set BANK number for LOCAL-Z (“3” is disabled because of overlapped with Common-area.)
15 14 13 12 11 10 9 8
bit Symbol LZE Z8
Read/Write R/W R/W
After reset 0 0
Function
BANK for
LOCALZ
0: Disable
1: Enable
Set BANK number for LOCAL-Z
Z8-Z0 setting and CS
000000000 to 001111111 CSZA 100000000 to 101111111 CSZC
010000000 to 011111111 CSZB 110000000 to 111111111 CSZD
LOCALRX
(890H)
(891H)
LOCALRY
(892H)
(893H)
LOCALRZ
(894H)
(895H)