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S3F80JB
IPH
— Instruction Pointer (High Byte)
Bit Identifier
Reset Value
Read/Write
Addressing Mode
.7 – .1
IPL
— Instruction Pointer (Low Byte)
Bit Identifier
Reset Value
Read/Write
Addressing Mode
.7 – .0
.7
.6
x
x
R/W
R/W
Register addressing mode only
Instruction Pointer Address (High Byte)
The high-byte instruction pointer value is the upper eight bits of the 16-bit instruction
pointer address (IP15–IP8). The lower byte of the IP address is located in the IPL
register (DBH).
.7
.6
x
x
R/W
R/W
Register addressing mode only
Instruction Pointer Address (Low Byte)
The low-byte instruction pointer value is the lower eight bits of the 16-bit instruction
pointer address (IP7–IP0). The upper byte of the IP address is located in the IPH
register (DAH).
.5
.4
x
x
R/W
R/W
R/W
.5
.4
.3
x
x
R/W
R/W
R/W
CONTROL REGISTERS
DAH Set1 Bank0
.3
.2
.1
x
x
x
R/W
R/W
DBH Set1 Bank0
.2
.1
x
x
x
R/W
R/W
.0
x
R/W
.0
x
R/W
4-15
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