Filter
Top Products
2-6
APPLICATION
2.1 I/O pins
4513/4514 Group User’s Manual
(4) Direction register FR0 (The 4513 Group does not have this register.)
Register FR0 is used to switch to input/output of P50–P53.
Set the contents of this register through register A with the TFR0A instruction.
Table 2.1.4 shows the direction register FR0.
Table 2.1.4 Direction register FR0
Direction register FR0 (Note 2) at reset : 00002 at RAM back-up : state retained
W
Port P53 input
Port P53 output
Port P52 input
Port P52 output
Port P51 input
Port P51 output
Port P50 input
Port P50 output
Port P53 input/output control bit
Port P52 input/output control bit
Port P51 input/output control bit
Port P50 input/output control bit
0
1
0
1
0
1
0
1
Notes 1: “W” represents write enabled.
2: The 4513 Group does not have register FR0.
FR03
FR02
FR01
FR00
(5) Timer control register W6
D6/CNTR0 function selection bit is assigned to bit 0, D7/CNTR1 function selection bit is assigned to
bit 2.
Set the contents of this register through register A with the TW6A instruction.
The contents of register W6 is transferred to register A with the TAW6 instruction.
Table 2.1.5 shows the timer control register W6.
Table 2.1.5 Timer control register W6
Timer control register W6 at reset : 00002 at RAM back-up : state retained
R/W
Timer 3 underflow signal output divided by 2
CNTR1 output control by timer 4 underflow signal divided by 2
D7(I/O)/CNTR1 input
CNTR1 I/O/D7 (input)
Timer 1 underflow signal output divided by 2
CNTR0 output control by timer 2 underflow signal divided by 2
D6 (I/O)/CNTR0 input
CNTR0 I/O/D6 (input)
CNTR1 output control bit
D7/CNTR1 function selection bit
CNTR0 output control bit
D6/CNTR0 function selection bit
0
1
0
1
0
1
0
1
Notes 1: “R” represents read enabled, and “W” represents write enabled.
2: When setting ports, W63 and W61 are not used.
W63
W62
W61
W60