UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 121

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

(3)
to P43, P50 to P53, P70 to P76, P120, P131 and P132 are to be used or not. On-chip pull-up resistors can be used in
1-bit units only for the bits set to input mode of the pins to which the use of an on-chip pull-up resistor has been
specified in PU0, PU1, PU3 to PU5, PU7, PU12, and PU13. On-chip pull-up resistors cannot be connected to bits set
to output mode and bits used as alternate-function output pins, regardless of the settings of PU0, PU1, PU3 to PU5,
PU7, PU12, and PU13.
These registers specify whether the on-chip pull-up resistors of P00, P01, P05, P06, P10 to P17, P30 to P33, P40
These registers can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears these registers to 00H.
Symbol
PU12
PU13
Pull-up resistor option registers (PU0, PU1, PU3 to PU5, PU7, PU12, PU13)
PU0
PU1
PU3
PU4
PU5
PU7
PUmn
0
1
PU17
7
0
7
7
0
7
0
7
0
7
0
7
0
7
0
On-chip pull-up resistor not connected
On-chip pull-up resistor connected
PU06
PU16
PU76
6
6
6
0
6
0
6
0
6
6
0
6
0
Figure 5-26. Format of Pull-up Resistor Option Register
PU05
PU15
PU75
5
5
5
0
5
0
5
0
5
5
0
5
0
PU14
PU74
CHAPTER 5 PORT FUNCTIONS
4
0
4
4
0
4
0
4
0
4
4
0
4
0
User’s Manual U17554EJ4V0UD
PUmn pin on-chip pull-up resistor selection
PU13
PU33
PU43
PU53
PU73
(m = 0, 1, 3 to 5, 7, 12, 13, n = 0 to 7)
3
0
3
3
3
3
3
3
0
3
0
PU132
PU12
PU32
PU42
PU52
PU72
2
0
2
2
2
2
2
2
0
2
PU131
PU01
PU11
PU31
PU41
PU51
PU71
1
1
1
1
1
1
1
0
1
PU120
PU00
PU10
PU30
PU40
PU50
PU70
0
0
0
0
0
0
0
0
0
Address
FF3CH
FF3DH
FF30H
FF31H
FF33H
FF34H
FF35H
FF37H
After reset
00H
00H
00H
00H
00H
00H
00H
00H
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
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