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參數(shù)資料
| 型號： | GMS81524BQ |
| 廠商： | Hynix Semiconductor Inc. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| 中文描述： | 8位單晶片微控制器 |
| 文件頁數(shù)： | 14/110頁 |
| 文件大?。?/td> | 1980K |
| 代理商： | GMS81524BQ |
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GMS81508B/16B/24B, GMS82512/16/24
MAY. 2001 Ver 2.0
11
5. PIN FUNCTION
V
DD
: Supply voltage.
V
SS
: Circuit ground.
TEST
: Used for Test Mode. For normal operation, it
should be connected to V
DD
.
RESET
: Reset the MCU.
X
IN
: Input to the inverting oscillator amplifier and input to
the internal main clock operating circuit.
X
OUT
: Output from the inverting oscillator amplifier.
R00~R07
: R0 is an 8-bit CMOS bidirectional I/O port. R0
pins 1 or 0 written to the Port Direction Register can be
used as outputs or inputs.
R10~R17
: R1 is an 8-bit CMOS bidirectional I/O port. R1
pins 1 or 0 written to the Port Direction Register can be
used as outputs or inputs.
These pins are NOT served on GMS825xx.
R20~R27
: R2 is an 8-bit CMOS bidirectional I/O port. R2
pins 1 or 0 written to the Port Direction Register can be
used as outputs or inputs.
R30~R37
: R3 is an 8-bit CMOS bidirectional I/O port. R3
pins 1 or 0 written to the Port Direction Register can be
used as outputs or inputs.
R40~R47
: R4 is an 8-bit CMOS bidirectional I/O port. R4
pins 1 or 0 written to the Port Direction Register can be
used as outputs or inputs.
R45, R46, R47 are NOT served on GMS825xx.
In addition, R4 serves the functions of the various follow-
ing special features.
R50~R57
: R5 is an 8-bit CMOS bidirectional I/O port. R5
pins 1 or 0 written to the Port Direction Register can be
used as outputs or inputs.
R50~R53, R56, R57 are NOT served on GMS825xx.
In addition, R5 serves the functions of the various follow-
ing special features.
R60~R67
: R6 is an 8-bit CMOS bidirectional I/O port. R6
pins 1 or 0 written to the Port Direction Register can be
used as outputs or inputs.
R60~R63 are NOT served on GMS825xx.
In addition, R6 is shared with the ADC input.
Note:
On the MDS(Choice-Dr, Jr), when the MCU is RE-
SET, R60 can not be used digital input port. For more detail,
refer to "9. I/O PORTS" on page 34.
AV
DD
: Supply voltage to the ladder resistor of ADC cir-
cuit. To enhance the resolution of analog to digital convert-
er, use independent power source as well as possible, other
than digital power source.
AV
SS
: ADC circuit ground.
AV
SS
is NOT served on GMS825xx but it is connected to
V
SS
internally.
Port pin
Alternate function
R40
R41
R42
R43
R44
R45
R46
R47
INT0 (External interrupt 0)
INT1 (External interrupt 1)
INT2 (External interrupt 2)
INT3 (External interrupt 3)
EC0 (Event counter input 0)
EC2 (Event counter input 2)
T1O (Timer/Counter 1 output)
T3O (Timer/Counter 3 output)
Port pin
Alternate function
R50
R51
R52
R53
R54
R55
R56
R57
SIN (Serial data input)
SOUT (Serial data output)
SCLK (Serial clock)
SRDY (Serial ready)
WDTO (Watchdog Timer output)
BUZ (Buzzer driver output)
PWM0 (PWM output 0)
PWM1 (PWM output 1)
Port pin
Alternate function
R60
R61
R62
R63
R64
R66
R66
R67
AN0 (Analog Input 0)
AN1 (Analog Input 1)
AN2 (Analog Input 2)
AN3 (Analog Input 3)
AN4 (Analog Input 4)
AN5 (Analog Input 5)
AN6 (Analog Input 6)
AN7 (Analog Input 7)
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