III PERIPHERAL BLOCK: SERIAL INTERFACE

SSOUT3: Serial I/F Ch.3 SOUT selection (D1) / Port SIO function extension register (0x402D7)

Switches the function of pin P16/EXCL5/#DMAEND1/SOUT3.

Write "1":

SOUT3

Write "0":

P16/EXCL5/#DMAEND1

Read:

Valid

To use the pin as SOUT3, set SSOUT3 (D1 / 0x402D7) to "1" and CFP16 (D6 / 0x402D4) to "0". To use the pin as P16, EXCL5, or #DMAEND1, set this bit to "0".

At power-on, this bit is set to "0".

SSCLK3: Serial I/F Ch.3 SCLK selection (D2) / Port SIO function extension register (0x402D7)

Switches the function of pin P15/EXCL4/#DMAEND0/#SCLK3.

Write "1":

#SCLK3

Write "0":

P15/EXCL4/#DMAEND0

Read:

Valid

To use the pin as #SCLK3, set SSCLK3 (D2 / 0x402D7) to "1" and CFP15 (D5 / 0x402D4) to "0". To use the pin as P15, EXCL4, or #DMAEND0, set this bit to "0".

At power-on, this bit is set to "0".

SSRDY3: Serial I/F Ch.3 SRDY selection (D3) / Port SIO function extension register (0x402D7)

Switches the function of pin P32/#DMAACK0/#SRDY3.

Write "1":

#SRDY3

Write "0":

P32/#DMAACK0

Read:

Valid

To use the pin as #SRDY3, set SSRDY3 (D3 / 0x402D7) to "1" and CFP32 (D2 / 0x402DC) to "0". To use the pin as P32 or #DMAACK0, set this bit to "0".

At power-on, this bit is set to "0".

SSIN2: Serial I/F Ch.2 SIN selection (D0) / Port SIO function extension register (0x402DB)

Switches the function of pin P27/TM5/SIN2.

Write "1": SIN2

Write "0": P27/TM5

Read: Valid

To use the pin as SIN2, set SSIN2 (D0 / 0x402DB) to "1" and CFP27 (D7 / 0x402D8) to "0". To use the pin as P27 or TM5, set this bit to "0".

At power-on, this bit is set to "0".

SSOUT2: Serial I/F Ch.2 SOUT selection (D1) / Port SIO function extension register (0x402DB)

Switches the function of pin P26/TM4/SOUT2.

Write "1": SOUT2

Write "0": P26/TM4

Read: Valid

To use the pin as SOUT2, set SSOUT2 (D1 / 0x402DB) to "1" and CFP26 (D6 / 0x402D8) to "0". To use the pin as P26 or TM4, set this bit to "0".

At power-on, this bit is set to "0".

A-1

B-III

SIF

S1C33L03 FUNCTION PART

EPSON

B-III-8-33