UPD6125AG NEC, UPD6125AG Datasheet - Page 17

• Manufacturer Part Number: UPD6125AG
• Description: 4-BIT SINGLE CHIP MICROCONTROLLER FOR REMOTE CONTROL TRANSMISSION
• Manufacturer: NEC

16. MASK OPTIONS (PLA DATA)
BIT Assignment by Switch Selection
Switch for Data
(1) Pull-down resistor
(2) Modulation duty (at f
(3) Hang-up detection
The following items can be selected by mask option selection:
• Provide/not provide K
• Carrier duty selection (1/2, 1/3) at f
• Hang-up detection specification
Mask option data should be registered at the object code end.
Caution
0
1
2
3
4
When 0 ··· Not provided (OFF)
When 1 ··· Provided (ON)
When 0 ··· 1/2 duty
When 1 ··· 1/3 duty
<1> K
If the switch for hang-up detection K
is reset, if in oscillation HALT (STOP) mode, the K
the K
Caution To use a pin as a key source of a key matrix, be sure to set the switch to ON by mask option.
Hang up detection
pull-down resistor
pull-down resistor
pull-down resistor
I/O
Corresponding
Portion
When 0 ··· No reset function (OFF)
When 1 ··· Reset function (ON)
ALL, I/O
PD6125A is not equipped with I/O
I/O
Duty
S-IN
I/O
I/O
K
(I/O
I
0
1
0
0
, I/O
ALL, I/O
OSC
1
I
, I/O, S-IN pin pull-down resistor
) pins is low (AC pin discharge mode).
/12)
1
MSB
ALL
I/O
I/O
ALL
K
K
7
0
I/O
I0
00
10
OSC
HALT
/12
S-IN
I/O
I/O
I/O
K
6
0
I1
01
11
ALL (I/O
10
- I/O
HALT
I/O
I/O
K
K
0
5
0
I/O
I2
ALL, I/O
02
12
13
pins.
I/O
(I/O
selection
HALT
Duty
I/O
I/O
1
K
K
4
ALL) is set to ON (1) by mask option, the system
0
I3
I
03
13
, I/O
1
) pin is in input mode, or if at least one of
HALT
I/O
3
0
0
HALT
PD6125A, 6126A
I/O
2
0
1
0
0
0
pull-down
resistor
S-IN
I/O
ALL
1
0
ALL
I/O
0
0
LSB
1
17