UPD17073 NEC, UPD17073 Datasheet - Page 50
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)
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Peripheral
hardware
Stack
Timer
Interrupt
Pin
Remark –: Determined by status of pin, R: Previous status is retained.
50
Stack pointer
(SP)
Basic timer 0
carry register
Interrupt edge
select register
Interrupt enable
register
INT pin interrupt
request register
Basic timer 1
interrupt request
register
Serial interface
interrupt request
register
CE pin status
detection register
Port 1A pull-down (BANK1) R/W
select register
Name
Table 8-1. Peripheral Hardware Control Functions of Peripheral Control Registers (1/4)
Control register
(BANK1) R/W
(BANK1) R&
(BANK1) R/W
(BANK1) R/W
(BANK1) R/W
(BANK1) R/W
(BANK1) R/W
(BANK1) R
Address
54H
51H
56H
57H
58H
59H
5AH
52H
53H
Read/ b
Reset 0
Write b
– – – – – – – – -
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – -
– – – – – – – – -
– – – – – – – – -
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – -
– – – – – – – – -
– – – – – – – – -
– – – – – – – – -
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – -
– – – – – – – – -
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – -
– – – – – – – – -
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – -
– – – – – – – – -
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – –
– – – – – – – – –
– – – – – – – – –
b
b
0
0
SP1
SP0
0
0
BTM0CY
0
INT
BTM1CK
IEG
0
IPSIO
IPBTM1
IP
0
0
0
IRQ
0
0
0
IRQBTM1
0
0
0
IRQSIO
0
0
0
CE
P1APLD3
P1APLD2
P1APLD1
P1APLD0
3
2
1
0
Symbol
Fixed to 0
Stack pointer
Fixed to 0
Detects status of carry FF
Fixed to 0
Detects status of INT Pin
Sets set time interval of IRQBTM1 flag
Sets interrupt issuing edge of INT pin
Fixed to 0
Serial interface
Basic timer 1
INT pin
Fixed to 0
Detects interrupt request of INT pin
Fixed to 0
Detects interrupt request of basic timer 1 Not requested
Fixed to 0
Detects interrupt of serial interface
Fixed to 0
Detects status of CE pin
P1A3
P1A2
P1A1
P1A0
Selects pull-down
resistor of these pins
Functional outline
Enables interrupt
Peripheral hardware control function
Reset
Low level
32 ms (31.25 Hz) 8 ms (125 Hz)
Rising edge
Disables interrupt Enables interrupt
Not requested
Not requested
Low level
Resistor ON
0
Set value
Set
High level
Falling edge
Requested
Requested
Requested
High level
Resistor OFF
PD17072,17073
1
Power- Clock CE
ON stop
2
0
0
0
0
0
0
–
0
At reset
R
2
1
0
0
0
0
0
–
R
2
1
0
0
0
0
0
–
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