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參數(shù)資料
| 型號： | HMS91C7432 |
| 廠商： | HYNIX SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | HMS91C7432 features and functions |
| 中文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PDIP20 |
| 封裝： | PLASTIC, DIP-20 |
| 文件頁數(shù)： | 21/90頁 |
| 文件大?。?/td> | 1557K |
| 代理商： | HMS91C7432 |
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HMS9xC7132 / HMS9xC7134
May.2001 ver1.1
17
which the use of the stack starts) by using the initialization rou-
tine. Normally, the initial value of “07
H
” is used and the stack
area is 00
H
to 7F
H
.
Program Counter
: The Program Counter is a 16-bit wide which
consists of two 8-bit registers, PCH and PCL. This counter indi-
cates the address of the next instruction to be executed. In reset
state, the program counter has reset routine address (PC
H
:0FF
H
,
PC
L
:0FE
H
).
Program Status Word
: The Program Status Word (PSW) con-
tains several bits that reflect the current state of the CPU and se-
lect Internal RAM(00H~1FH:Bank0~Bank3). The PSW is
described in Figure 8-4. It contains the Carry flag, the Auxiliary
carry flag, the Half Carry (for BCD operation), the General pur-
pose flag, the Register bank select flags, the Overflow flag, the
undefined flag and Parity flag.
[Carry flag CY]
This flag stores any carry or not borrow from the ALU of CPU
after an arithmetic operation and is also changed by the Shift In-
struction or Rotate Instruction.
[Auxiliary carry flag AC]
After operation, this is set when there is a carry from bit 3 of ALU
or there is no borrow from bit 4 of ALU.
[Register bank select flags RS0, RS1]
This flags select one of four bank(00~07H:bank0, 08~0fH:bank1,
10~17H:bank2, 17~1FH:bank3)in Internal RAM.
[Overflow flag OV]
This flag is set to “1” when an overflow occurs as the result of an
arithmetic operation involving signs. An overflow occurs when
the result of an addition or subtraction exceeds +127(7F
H
) or -
128(80
H
). The CLRV instruction clears the overflow flag. There
is no set instruction. When the BIT instruction is executed, bit 6
of memory is copied to this flag.
[Parity flag P]
This flag reflect on number of Accumulator’s 1. If number of Ac-
uumulator’s 1 is odd, P=0. otherwise P=1. Sum of adding Acu-
umulator’s 1 to P is always even.
R0~R7
: General purpose register.
Data Pointer Register
:Data Pointer Register is 16-bit wide
which consists of two-8bit registers, DPH and DPL. This register
is used as a data pointer for the data transmission with external
data memory.
Figure 8-4 PSW(Program Status Word)Register
8.2 Program Memory
The program memory consists of ROM : 32K bytes (HMS91C7132) and 32K bytes (HMS97C7132)
8.3 Data memory
The internal data memory is divided into four physically separat-
ed part : 256 bytes of RAM, 256 bytes of XRAM0, and 128 bytes
of Special Function Registers (SFRs) areas.
RAM
Four register banks, each 8 registers wide, occupy locations 0
through 31 in the lower RAM area. Only one of these banks may
be enabled at a time. The next 16 bytes, locations 32 through 47,
SP
00
H
Stack Area (30
H
~ 7F
H
)
8 7
Bit 15
Bit 0
Hardware fixed
00
H
~7F
H
SP (Stack Pointer) could be in 00
H
~7F
H
.
CARRY FLAG
MSB
LSB
RESET VALUE: 00
H
PSW
AUXILIARY CARRY FLAG
REGISTER BANK SELECT FLAG
(to select Bank0~3 with RS0)
PARITY FLAG
NOT ASSIGNED BIT
OVERFLOW FLAG
REGISTER BANK SELECT FLAG
(to select Bank0~3 with RS1)
GENERAL PURPOSE FLAG
CY
AC
F0
RS1 RS0 0V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HMS91C8032 | HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| HMS91C7134 | [Monitor] |
| HMS97C7134 | [Monitor] |
| HMS97C8032 | H8/SLP Series, 38799 Group, 4-ch 14-bit PWM, 2-ch 16-bit TPU, 16-bit AEC, RTC FP-100U; Vcc= 1.8 to 3.6 volts, Temp= -20 to 75 C; Package: PLQP0100KB-A |
| HMS99C51S | 8-BIT SINGLE-CHIP MICROCONTROLLERS WITH EMBEDDED FLASH |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HMS91C8032 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| HMS97C7132 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:[Monitor] |
| HMS97C7134 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:[Monitor] |
| HMS97C8032 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| HMS99C51 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
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