UPD75216ACW

Manufacturer Part NumberUPD75216ACW
Description4-BIT SINGLE-CHIP MICROCOMPUTER
ManufacturerNEC
UPD75216ACW datasheet
 


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Page 31/72:

RESET FUNCTIONS

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8. RESET FUNCTIONS
The reset signal (RES) generator has a configuration shown in Fig. 8-1.
RESET
Power-On
Reset
Generator
The power-on reset generator is a circuit to generate a one-shot pulse upon detection of the start-up of the power
voltage. This pulse is used in the following three ways according to SWA, SWB mask option specification shown
in Fig. 8-1. (Refer to 10. MASK OPTION SELECTION.
Fig. 8-1 Reset Signal Generator
Mask
SWB
Option
SWA
Power-On Flag
(PONF)
PD75216A
Internal Reset Signal
(RES)
Bit
Manipulation
Instruction
Execution
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