參數(shù)資料
型號: MSM6512-XXXGS-2K
廠商: LAPIS SEMICONDUCTOR CO LTD
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 0.032768 MHz, MICROCONTROLLER, PQFP56
封裝: 9 X 10 MM, 0.65 MM PITCH, PLASTIC, QFP-56
文件頁數(shù): 9/13頁
文件大?。?/td> 173K
代理商: MSM6512-XXXGS-2K
4/12
MSM6502B/6512
Semiconductor
PIN DESCRIPTIONS
Symbol
Description
GND
Ground pin
VDD
Power supply pins
OSC0
Crystal OSC input, internal clock input
OSC1
Crystal OSC input, internal clock output
P0.0 to P0.3
P1.0 to P1.3
Pseudo-bidirectional ports for 4-bit parallel I/O. To input data from these ports,
it is necessary to write "1" beforehand.
The port to be selected is specified by the L register. The register contents and
the corresponding specified ports are listed below.
Note: P3, P4, and P5 are internal ports.
P2.0 to P2.3
Input port for 4-bit parallel input with no latching function.
INT
Input pin to request an interrupt from the external circuit. The input flag is set at
the falling edge of the input signal.
6, 7, 0EH, 0FH
5, 0DH
4, 0CH
3, 0BH
2, 0AH
1, 9
0, 8
Content of L Register
P5
P4
P3
P2
P1
P0
Port Specified
No designation
RESET
The reset mode starts after "0" is input to the RESET pin for more than 2
machine cycles.
The reset signal has priority over all of other signals and performs the following
operations automatically:
(1) Resets all bits of the PC (program counter) to"0".
(2) Sets all bits of the parallel I/O ports (P0.0 to P1.3) to "1"
(3) Resets the internal register (H, L, ACC, C, P3, P4, P5).
(4) Resets the skip flag.
(5) Resets all bits of the time base counter (TBC).
(6) Resets the interrupt request flag (IRQF).
(7) Resets the interrupt enable flag (EIF).
(8) Resets the master interrupt enable flag (MEIF).
(9) Sets all bits of the stack pointer (SP) to "1" .
(10) Initializes the segment and common outputs.
(11) Sets all bits of the index register (IDR) to "1".
Since the RESET pin is pulled up to VDD by an internal resistor (800 kW), it is
possible to achieve power ON reset by connecting it with an external capacitor.
Pin
24
21, 49
22
23
1 to 4
5 to 8
9 to 12
16
15
相關(guān)PDF資料
PDF描述
MSM6512-XXXGS-K 4-BIT, MROM, 0.032768 MHz, MICROCONTROLLER, PQFP56
MSM6502B-XXXGS-2K 4-BIT, MROM, 0.032768 MHz, MICROCONTROLLER, PQFP56
MSM6512-XXXGS-2K 4-BIT, MROM, 0.032768 MHz, MICROCONTROLLER, PQFP56
MSM65344A-XXXGS-BK 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP80
MSM65344A-XXXGS-BK 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP80
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