參數(shù)資料
型號: μPD784218
廠商: NEC Corp.
英文描述: 8 /16 Bit Single Chip Microcontrollers(8/16位單片微控制器)
中文描述: 8 / 16位單片機微控制器(8 / 16位單片微控制器)
文件頁數(shù): 25/70頁
文件大小: 271K
代理商: ΜPD784218
μ
PD784217,784218
25
7.2.2 Control registers
(1) Program counter (PC)
The program counter is a 20-bit register whose contents are automatically updated when the program is
executed.
Figure 7-4. Program Counter (PC) Format
19
0
PC
(2) Program status word (PSW)
This register holds the status of the CPU. Its contents are automatically updated when the program is
executed.
Figure 7-5. Program Status Word (PSW) Format
15
14
13
12
11
10
9
8
UF
RBS2
RBS1
RBS0
PSWH
7
6
5
4
3
2
1
0
S
Z
RSS
Note
AC
IE
P/V
0
CY
PSWL
PSW
Note
This flag is provided to maintain compatibility with the 78K/III Series. Be sure to clear this flag to 0,
except when the software for the 78K/III Series is used.
(3) Stack pointer (SP)
This is a 24-bit pointer that holds the first address of the stack. Be sure to write 0 to the higher 4 bits of this
pointer.
Figure 7-6. Stack Pointer (SP) Format
23
0
SP
20
0
0
0
0
相關(guān)PDF資料
PDF描述
μPD784217 8 /16 Bit Single Chip Microcontrollers(8/16位單片微控制器)
μPD784928Y 16 Bit Single Chip Microcontrollers(16 位單片微控制器)
μPD784915A 16 Bit Single Chip Microcontrollers(16 位單片微控制器)
μPD784916A 16 Bit Single Chip Microcontrollers(16 位單片微控制器)
μPD784907 16 Bit Single Chip Microcontrollers(16 位單片微控制器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PD784976A 制造商:NEC 制造商全稱:NEC 功能描述:16-Bit Single-Chip Microcontroller
PD7869 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Optoelectronic
PD78F0134 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers
PD78F0134(A) 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers
PD78F0134(A1) 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers