Epson S1C33210 manual 43

4

PERIPHERAL CIRCUITS

Register name

Address

Bit

Name

Function

Setting

Init.

R/W

Remarks

Key input,

0040270

D7–6

–

reserved

–

–

–

0 when being read.

port input 0–3

(B)

D5

EK1

Key input 1

1

Enabled

0

Disabled

0

R/W

interrupt

D4

EK0

Key input 0

0

R/W

enable register

D3

EP3

Port input 3

0

R/W

D2

EP2

Port input 2

0

R/W

D1

EP1

Port input 1

0

R/W

D0

EP0

Port input 0

0

R/W

DMA interrupt

0040271

D7–5

–

reserved

–

–

–

0 when being read.

enable register

(B)

D4

EIDMA

IDMA

1

Enabled

0

Disabled

0

R/W

D3

EHDM3

High-speed DMA Ch.3

0

R/W

D2

EHDM2

High-speed DMA Ch.2

0

R/W

D1

EHDM1

High-speed DMA Ch.1

0

R/W

D0

EHDM0

High-speed DMA Ch.0

0

R/W

16-bit timer 0/1

0040272

D7

E16TC1

16-bit timer 1 comparison A

1

Enabled

0

Disabled

0

R/W

interrupt

(B)

D6

E16TU1

16-bit timer 1 comparison B

0

R/W

enable register

D5–4

–

reserved

–

–

–

0 when being read.

D3

E16TC0

16-bit timer 0 comparison A

1

Enabled

0

Disabled

0

R/W

D2

E16TU0

16-bit timer 0 comparison B

0

R/W

D1–0

–

reserved

–

–

–

0 when being read.

16-bit timer 2/3

0040273

D7

E16TC3

16-bit timer 3 comparison A

1

Enabled

0

Disabled

0

R/W

interrupt

(B)

D6

E16TU3

16-bit timer 3 comparison B

0

R/W

enable register

D5–4

–

reserved

–

–

–

0 when being read.

D3

E16TC2

16-bit timer 2 comparison A

1

Enabled

0

Disabled

0

R/W

D2

E16TU2

16-bit timer 2 comparison B

0

R/W

D1–0

–

reserved

–

–

–

0 when being read.

16-bit timer 4/5

0040274

D7

E16TC5

16-bit timer 5 comparison A

1

Enabled

0

Disabled

0

R/W

interrupt

(B)

D6

E16TU5

16-bit timer 5 comparison B

0

R/W

enable register

D5–4

–

reserved

–

–

–

0 when being read.

D3

E16TC4

16-bit timer 4 comparison A

1

Enabled

0

Disabled

0

R/W

D2

E16TU4

16-bit timer 4 comparison B

0

R/W

D1–0

–

reserved

–

–

–

0 when being read.

8-bit timer

0040275

D7–4

–

reserved

–

–

–

0 when being read.

interrupt

(B)

D3

E8TU3

8-bit timer 3 underflow

1

Enabled

0

Disabled

0

R/W

enable register

D2

E8TU2

8-bit timer 2 underflow

0

R/W

D1

E8TU1

8-bit timer 1 underflow

0

R/W

D0

E8TU0

8-bit timer 0 underflow

0

R/W

Serial I/F

0040276

D7–6

–

reserved

–

–

–

0 when being read.

interrupt

(B)

D5

ESTX1

SIF Ch.1 transmit buffer empty

1

Enabled

0

Disabled

0

R/W

enable register

D4

ESRX1

SIF Ch.1 receive buffer full

0

R/W

D3

ESERR1

SIF Ch.1 receive error

0

R/W

D2

ESTX0

SIF Ch.0 transmit buffer empty

0

R/W

D1

ESRX0

SIF Ch.0 receive buffer full

0

R/W

D0

ESERR0

SIF Ch.0 receive error

0

R/W

Port input 4–7,

0040277

D7–6

–

reserved

–

–

–

0 when being read.

clock timer,

(B)

D5

EP7

Port input 7

1

Enabled

0

Disabled

0

R/W

A/D interrupt

D4

EP6

Port input 6

0

R/W

enable register

D3

EP5

Port input 5

0

R/W

D2

EP4

Port input 4

0

R/W

D1

ECTM

Clock timer

0

R/W

D0

EADE

A/D converter

0

R/W

S1C33210 PRODUCT PART EPSON A-29