UPD17073 NEC, UPD17073 Datasheet - Page 188
UPD17073
Manufacturer Part Number
UPD17073
Description
4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM
Manufacturer
NEC
Datasheet
1.UPD17073.pdf
(226 pages)
- Current page: 188 of 226
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20. RESET
20.1 Configuration of Reset Block
voltage V
failure detector circuit, and a reset control circuit.
circuit.
188
The reset function is to initialize the device operation.
Figure 20-1 shows the configuration of the reset block.
The device can be reset in two ways: by means of power-ON reset (or V
The power-ON reset block consists of a voltage detector circuit that detects the voltage input to the V
The CE reset block consists of a circuit that detects the rising of the signal input to the CE pin, and a reset control
X
V
X
OUT
CE
DD
IN
DD
, and CE reset that is effected by using the CE pin.
STOP s instruction
Voltage
detector
circuit
Rising
detector
circuit
Figure 20-1. Configuration of Reset Block
Power-ON clear signal (POC)
BTM0CY
flag read
Basic timer 0
carry disable FF
R
S
Power failure detector block
Q
Divider
STOP instruction
Reset control
circuit
Timer FF block
DD
reset) that is effected by applying supply
Basic timer
0 carry
Reset signal
IRES
RES
RESET
Forced halt by basic
timer 0 carry
Peripheral control
register, system
register, stack,
program counter
PD17072,17073
DD
pin, a power
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