Epson S1C33210 manual 38

4 PERIPHERAL CIRCUITS

Register name

Address

Bit

Name

Function

Setting

Init.

R/W

Remarks

Serial I/F Ch.1

00401E5

D7

TXD17

Serial I/F Ch.1 transmit data

0x0 to 0xFF(0x7F)

X

R/W

7-bit asynchronous

transmit data

(B)

D6

TXD16

TXD17(16) = MSB

X

mode does not use

register

D5

TXD15

TXD10 = LSB

X

TXD17.

D4

TXD14

X

D3

TXD13

X

D2

TXD12

X

D1

TXD11

X

D0

TXD10

X

Serial I/F Ch.1

00401E6

D7

RXD17

Serial I/F Ch.1 receive data

0x0 to 0xFF(0x7F)

X

R

7-bit asynchronous

receive data

(B)

D6

RXD16

RXD17(16) = MSB

X

mode does not use

register

D5

RXD15

RXD10 = LSB

X

RXD17 (fixed at 0).

D4

RXD14

X

D3

RXD13

X

D2

RXD12

X

D1

RXD11

X

D0

RXD10

X

Serial I/F Ch.1

00401E7

D7–6

–

–

–

–

–

0 when being read.

status register

(B)

D5

TEND1

Ch.1 transmit-completion flag

1

Transmitting

0

End

0

R

D4

FER1

Ch.1 flaming error flag

1

Error

0

Normal

0

R/W

Reset by writing 0.

D3

PER1

Ch.1 parity error flag

1

Error

0

Normal

0

R/W

Reset by writing 0.

D2

OER1

Ch.1 overrun error flag

1

Error

0

Normal

0

R/W

Reset by writing 0.

D1

TDBE1

Ch.1 transmit data buffer empty

1

Empty

0

Buffer full

1

R

D0

RDBF1

Ch.1 receive data buffer full

1

Buffer full

0

Empty

0

R

Serial I/F Ch.1

00401E8

D7

TXEN1

Ch.1 transmit enable

1

Enabled

0

Disabled

0

R/W

control register

(B)

D6

RXEN1

Ch.1 receive enable

1

Enabled

0

Disabled

0

R/W

D5

EPR1

Ch.1 parity enable

1

With parity

0

No parity

X

R/W

D4

PMD1

Ch.1 parity mode selection

1

Odd

0

Even

X

R/W

D3

STPB1

Ch.1 stop bit selection

1

2 bits

0

1 bit

X

R/W

D2

SSCK1

Ch.1 input clock selection

1

–

0

Internal clock

X

R/W

Always set to 0

D1

SMD11

Ch.1 transfer mode selection

SMD1[1:0]

Transfer mode

X

R/W

Always set SMD11 to

D0

SMD10

1

1

8-bit asynchronous

X

1

1

0

7-bit asynchronous

Serial I/F Ch.1

00401E9

D7–5

–

–

–

–

–

0 when being read.

IrDA register

(B)

D4

DIVMD1

Ch.1 async. clock division ratio

1/8

0

1/16

X

R/W

D3

IRTL1

Ch.1 IrDA I/F output logic inversion

Inverted

0

Direct

X

R/W

D2

IRRL1

Ch.1 IrDA I/F input logic inversion

Inverted

0

Direct

X

R/W

D1

IRMD11

Ch.1 interface mode selection

IRMD1[1:0]

I/F mode

X

R/W

D0

IRMD10

1

1

reserved

X

1

0

IrDA 1.0

0

1

reserved

0

0

General I/F

Serial I/F Ch.2

00401F0

D7

TXD27

Serial I/F Ch.2 transmit data

0x0 to 0xFF(0x7F)

X

R/W

transmit data

(B)

D6

TXD26

TXD27(26) = MSB

X

register

D5

TXD25

TXD20 = LSB

X

D4

TXD24

X

D3

TXD23

X

D2

TXD22

X

D1

TXD21

X

D0

TXD20

X

Serial I/F Ch.2

00401F1

D7

RXD27

Serial I/F Ch.2 receive data

0x0 to 0xFF(0x7F)

X

R

receive data

(B)

D6

RXD26

RXD27(26) = MSB

X

register

D5

RXD25

RXD20 = LSB

X

D4

RXD24

X

D3

RXD23

X

D2

RXD22

X

D1

RXD21

X

D0

RXD20

X

Serial I/F Ch.2

00401F2

D7–6

–

reserved

–

–

–

0 when being read.

status register

(B)

D5

TEND2

Ch.2 transmit-completion flag

1

Transmitting

0

End

0

R

D4

FER2

Ch.2 flaming error flag

1

Error

0

Normal

0

R/W

Reset by writing 0.

D3

PER2

Ch.2 parity error flag

1

Error

0

Normal

0

R/W

Reset by writing 0.

D2

OER2

Ch.2 overrun error flag

1

Error

0

Normal

0

R/W

Reset by writing 0.

D1

TDBE2

Ch.2 transmit data buffer empty

1

Empty

0

Buffer full

1

R

D0

RDBF2

Ch.2 receive data buffer full

1

Buffer full

0

Empty

0

R

A-24 EPSON S1C33210 PRODUCT PART