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5. Memory organization
A96G140/A96G148/A96A148 User’s manual
38
External RAM
2304bytes
(Indirect Addressing)
0000H
08FFH
107FH
1000H
Extended
Special Function Registers
128bytes
(Indirect Addressing)
Not used
Figure 14. XDATA Memory Area
5.4
SFR map
5.4.1
SFR map summary
Table 3. SFR Map Summary
―
Reserved
M8051 compatible
00H/8H
(1)
01H/9H
02H/0AH
03H/0BH
04H/0CH
05H/0DH
06H/0EH
07H/0FH
0F8H
IP1
–
–
–
UBAUD
UDATA
–
P5FSR
0F0H
B
USI1ST1
USI1ST2
USI1BD
USI1SDHR USI1DR
USI1SCLR
USI1SCHR
0E8H
RSTFR
USI1CR1
USI1CR2
USI1CR3
USI1CR4
USI1SAR
P3FSR
P4FSR
0E0H
ACC
USI0ST1
USI0ST2
USI0BD
USI0SDHR USI0DR
USI0SCLR
USI0SCHR
0D8H
LVRCR
USI0CR1
USI0CR2
USI0CR3
USI0CR4
USI0SAR
P0DB
P15DB
0D0H
PSW
P5IO
P0FSRL
P0FSRH
P1FSRL
P1FSRH
P2FSR
–
0C8H
OSCCR
P4IO
–
UCTRL1
UCTRL2
UCTRL3
–
USTAT
0C0H
EIFLAG0
P3IO
T2CRL
T2CRH
T2ADRL
T2ADRH
T2BDRL
T2BDRH