Epson S1C63558 4.5.5 I/O memory of output ports, Table, Control bits of output ports, Table 4.5.5.1 shows the I/O addresses and control bits for the output ports

CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Output Ports)

4.5.5 I/O memory of output ports

Table 4.5.5.1 shows the I/O addresses and control bits for the output ports.

Table 4.5.5.1

Control bits of output ports

Address

Register

Comment

D3

D2

D1

D0

Name

Init ∗ 1

1

0

FOUTE

0

FOFQ1

FOFQ0

FOUTE

0

FOUT

DC

R03 output selection (R03 should be fixed at "1".)

Unused

FF06H

0 ∗ 3

– ∗ 2

FOFQ1

0

FOUT

[FOFQ1, 0]

0

1

2

3

R/W

R

R/W

frequency

FOFQ0

0

Frequency

fOSC1/64

fOSC1/8

fOSC1

fOSC3

selection

CHFO

CHDO

CRMO

CTMO

CHFO

0

HFO

DC

R13 output selection (R13 should be fixed at "1".)

CHDO

0

HDO

DC

R12 output selection (R12 should be fixed at "1".)

FF13H

R/W

CRMO

0

XRMUTE

DC

R11 output selection (R11 should be fixed at "1".)

CTMO

0

XTMUTE

DC

R10 output selection (R10 should be fixed at "1".)

R03HIZ

R02HIZ

R01HIZ

R00HIZ

R03HIZ

0

Hi-Z

Output

R03 (FOUTE=0)/FOUT (FOUTE=1) Hi-z control

FF30H

R02HIZ

0

Hi-Z

Output

R02 (PTOUT=0)/TOUT (PTOUT=1) Hi-z control

R/W

R01HIZ

0

Hi-Z

Output

R01 (BZOUT=0)/BZ (BZOUT=1) Hi-z control

R00HIZ

0

Hi-Z

Output

R00 (XBZOUT=0)/XBZ (XBZOUT=1) Hi-z control

R03

R02

R01

R00

R03

1

High

Low

R03 output port data (FOUTE=0) Fix at "1" when FOUT is used.

FF31H

(FOUT)

(TOUT)

(BZ)

(XBZ)

R02

1

High

Low

R02 output port data (PTOUT=0) Fix at "1" when TOUT is used.

R/W

R01

1

High

Low

R01 output port data (BZOUT=0) Fix at "1" when BZ is used.

R00

1

High

Low

R00 output port data (XBZOUT=0) Fix at "1" when XBZ is used.

R13HIZ

R12HIZ

R11HIZ

R10HIZ

R13HIZ

0

Hi-Z

Output

R13 (CHFO=0)/HFO (CHFO=1) Hi-z control

FF32H

R12HIZ

0

Hi-Z

Output

R12 (CHDO=0)/HDO (CHDO=1) Hi-z control

R/W

R11HIZ

0

Hi-Z

Output

R11 (CRMO=0)/XRMUTE (CRMO=1) Hi-z control

R10HIZ

0

Hi-Z

Output

R10 (CTMO=0)/XTMUTE (CTMO=1) Hi-z control

R13

R12

R11

R10

R13

1

High

Low

R13 output port data (CHFO=0) Fix at "1" when HFO is used.

FF33H

(HFO)

(HDO)

(XRMUTE)

(XTMUTE)

R12

1

High

Low

R12 output port data (CHDO=0) Fix at "1" when HDO is used.

R/W

R11

1

High

Low

R11 output port data (CRMO=0) Fix at "1" when XRMUTE is used.

R10

1

High

Low

R10 output port data (CTMO=0) Fix at "1" when XTMUTE is used.

R23HIZ

R22HIZ

R21HIZ

R20HIZ

R23HIZ

0

Hi-Z

Output

FF34H

R22HIZ

0

Hi-Z

Output

R20–R23 Hi-z control

R/W

R21HIZ

0

Hi-Z

Output

R20HIZ

0

Hi-Z

Output

R23

R22

R21

R20

R23

1

High

Low

R22

1

High

Low

FF35H

R20–R23 output port data

R/W

R21

1

High

Low

R20

1

High

Low

0

0

BZOUT

XBZOUT

0 ∗ 3

– ∗ 2

Unused

0 ∗ 3

– ∗ 2

Unused

FF65H

R

R/W

BZOUT

0

BZ

DC

R01 output selection (R01 should be fixed at "1".)

XBZOUT

0

XBZ

DC

R00 output selection (R00 should be fixed at "1".)

CHSEL

PTOUT

CKSEL1

CKSEL0

CHSEL

0

Timer1

Timer0

TOUT output channel selection

FFC1H

PTOUT

0

On

Off

TOUT output control

R/W

CKSEL1

0

OSC3

OSC1

Prescaler 1 source clock selection

CKSEL0

0

OSC3

OSC1

Prescaler 0 source clock selection

*1 Initial value at initial reset

*2 Not set in the circuit

*3 Constantly "0" when being read

S1C63558 TECHNICAL MANUAL EPSON 37