參數(shù)資料
型號: UPD75312BGC
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 4位單片機
文件頁數(shù): 32/77頁
文件大小: 587K
代理商: UPD75312BGC
32
μ
PD75312B, 75316B
RESET Input in Standby
Mode
Low-order 6 bits of program
memory address 0000H are
set in PC13 to 8 and the
contents of address 0001H
are set in PC7 to 0.
Held
0
0
Bit 7 of program memory
address 0000H is set in
MBE.
Undefined
Held
*
Held
0
8.
RESET FUNCTION
The
μ
PD75316B is reset and the hardware is initialized as shown in Table 8-1 by RESET input. The reset operation
timing is shown in Fig. 8-1.
Fig. 8-1 Reset Operation by RESET Input
Table 8-1 Status of Each Hardware after Resetting (1/3)
Wait
(31.3 ms/4.19 MHz)
HALT Mode
Operating Mode
Internal Reset Operation
Operating Mode or Standby
Mode
RESET Input
RESET Input During
Operation
Same as the left
Undefined
0
0
Same as the left
Undefined
Undefined
Undefined
0
Hardware
Program counter (PC)
Carry flag (CY)
Skip flag (SK0 to 2)
PSW
Interrupt status flag (IST0)
Bank enable flag (MBE)
Stack pointer (SP)
Data memory (RAM)
General register (X, A, H, L, D, E, B, C)
Bank selection register (MBS)
*
Data of data memory addresses 0F8H to 0FDH becomes undefined by RESET input.
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