參數(shù)資料
型號: UPD78361ACW
廠商: NEC Corp.
英文描述: 16/8-BIT SINGLE-CHIP MICROCONTROLLER
中文描述: 16/8-BIT單片機
文件頁數(shù): 18/88頁
文件大?。?/td> 782K
代理商: UPD78361ACW
18
μ
PD78361A, 78362A
2.3
PROCESSOR REGISTERS
The
μ
PD78362A is provided with the following three types of processor registers:
Control registers
General-purpose registers
Special function registers (SFRs)
2.3.1
Control Registers
(1) Program counter (PC)
This is a 16-bit register that holds an address of the instruction to be executed next.
(2) Program status word (PSW)
This 16-bit register indicates the status of the CPU as a result of instruction execution.
(3) Stack pointer (SP)
This 16-bit register indicates the first address of the stack area (LIFO) of the memory.
Figure 2-5. Configuration of Control Registers
PC
PSW
SP
15
0
Figure 2-6. Configuration of PSW
PSW
UF
RBS2
RBS1
RBS0
0
0
0
0
15
8
S
Z
RSS
AC
IE
P/V
0
CY
7
0
UF
RBS0-RBS2: Register bank select flag
S
: Sign flag (MSB of execution result)
Z
: Zero flag
RSS
: Register set select flag
AC
: Auxiliary carry flag
IE
: Interrupt request enable flag
P/V
: Parity/overflow flag
CY
: Carry flag
: User flag
相關PDF資料
PDF描述
UPD78363A 16/8-BIT SINGLE-CHIP MICROCONTROLLERS
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UPD78366AGF 16/8-BIT SINGLE-CHIP MICROCONTROLLERS
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