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参数资料
| 型号： | MB89202YPFV |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 12.5 MHz, MICROCONTROLLER, PDSO34 |
| 封装： | 6.10 X 11 MM, 1.45 MM HEIGHT, 0.65 MM PITCH, PLASTIC, SSOP-34 |
| 文件页数： | 9/48页 |
| 文件大小： | 1266K |
| 代理商： | MB89202YPFV |
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MB89202R Series
DS07-12562-3E
17
2.
Registers
The MB89202R series has two types of registers; dedicated registers in the CPU and general-purpose registers
in the memory. The following dedicated registers are provided :
Program counter (PC) :
A 16-bit register for indicating instruction storage positions
Accumulator (A) :
A 16-bit temporary register for storing arithmetic operations, etc. When the
instruction is an 8-bit data processing instruction, the lower byte is used.
Temporary accumulator (T) : A 16-bit register which performs arithmetic operations with the accumulator
When the instruction is an 8-bit data processing instruction, the lower byte is used.
Index register (IX) :
A 16-bit register for index modification
Extra pointer (EP) :
A 16-bit pointer for indicating a memory address
Stack pointer (SP) :
A 16-bit register for indicating a stack area
Program status (PS) :
A 16-bit register for storing a register pointer, a condition code
The PS can further be divided into higher 8 bits for use as a register bank pointer (RP) and the lower 8 bits for
use as a condition code register (CCR) . (See the diagram below.)
PS
PC
16 bits
A
T
IX
EP
SP
RP
CCR
: Program counter
: Accumulator
: Temporary accumulator
: Index register
: Extra pointer
: Stack pointer
: Program status
FFFDH
Undefined
I-flag = 0, IL1, 0 = 11
The other bit values are undefined.
Initial value
PS
RP
CCR
X011XXXXB
CCR initial value
bit15 bit14 bit13 bit12 bit11 bit10
bit9
bit8
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
R4
R3
R2
R1
R0
H
I
IL1
IL0
N
Z
V
C
H-flag
N-flag
IL1,0
I-flag
Z-flag
C-flag
V-flag
X : Undefined
Structure of the Program Status Register
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相关代理商/技术参数 |
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|---|---|
| MB89251A | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:SERIAL DATA TRANSMITTER / RECEIVER |
| MB89254 | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:PROGRAMMABLE TIMER |
| MB89255A | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:PARALLEL DATA I/O INTERFACE |
| MB89259A | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:INTERRUPT CONTROLLER |
| MB89322B | 制造商:Fuji Electric 功能描述:89322B 制造商:FUJITSU 功能描述:89322B |
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