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UPD17933 Datasheet(PDF) 39 Page - NEC

Part # UPD17933
Description  4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DIGITAL TUNING SYSTEM HARDWARE
PDF  252 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD17933 Datasheet(HTML) 39 Page - NEC

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µPD17933, 17934
5.3 Address Register (AR)
5.3.1 Configuration of address register
Figure 5-3 shows the configuration of the address register.
As shown in the figure, the address register consists of 16 bits of system register addresses 74H through
77H (AR3 through AR0).
Figure 5-3. Configuration of Address Register
Address
Name
Symbol
Bit
Data
74H
AR3
75H
AR2
76H
AR1
77H
AR0
b3
M
S
B
b2
b1
b0
b3
b2
b1
b0
b3
b2
b1
b0
b3
b2
b1
b0
L
S
B
Reset by RESET pin
WDT&SP reset
Clock stop
Address register (AR)
0
0
Retained
0
0
Retained
0
0
Retained
0
0
Retained
Reset by RESET pin
WDT&SP reset
Clock stop
: Reset by RESET pin
: Reset by watchdog timer and stack pointer
: On execution of clock stop instruction



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