参数资料
型号: M37478E8SP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP42
封装: PLASTIC, SDIP-42
文件页数: 30/48页
文件大小: 720K
代理商: M37478E8SP
35
MITSUBISHI MICROCOMPUTERS
7477/ 7478 GROUP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
STP instruction preparation (pushing registers)
Timer 3, timer 4 interrupt disable
X/16 or XC/16 selected for timer 3 count source; timer 3 overflow selected for timer 4 count source
Timer 3, timer 4 start counting
Values set to timer 3, timer 4 that do not cause timer 4 to overflow until STP instruction is executed
Interrupt for return from STP enabled
Timer 4 interrupt request bit cleared
Clock X and clock for clock function XC halt (STP instruction)
RAM backup status
Interrupts from INT0, INT1, CNTR0/CNTR1, timer 1, timer 2, serial I/O, key on wake up
Clock X and clock for clock function XC oscillation start
Timer 4 overflow (X/16 or XC/16
→timer 3→timer 4)
Internal system clock start
Program start from interrupt vector
Normal program
RAM
bac
kup
function
Return
from
RAM
bac
kup
function
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