4 PERIPHERAL CIRCUITS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A-1

Register name

Address

Bit

Name

Function

 

 

 

 

Setting

 

Init.

R/W

Remarks

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G/A read signal

0048138

DF

A18AS

Area 18, 17 address strobe signal

1

 

Enabled

 

 

0

Disabled

0

R/W

 

 

control register

(HW)

DE

A16AS

Area 16, 15 address strobe signal

 

 

 

 

 

 

 

 

0

R/W

 

 

 

 

DD

A14AS

Area 14, 13 address strobe signal

 

 

 

 

 

 

 

 

0

R/W

 

A-4

 

 

DC

A12AS

Area 12, 11 address strobe signal

 

 

 

 

 

 

 

 

0

R/W

 

 

 

DB

–

reserved

 

 

 

 

 

–

 

0

–

0 when being read.

 

 

 

DA

A8AS

Area 8, 7 address strobe signal

1

 

Enabled

 

 

0

Disabled

0

R/W

 

 

 

 

D9

A6AS

Area 6 address strobe signal

 

 

 

 

 

 

 

 

0

R/W

 

 

 

 

D8

A5AS

Area 5, 4 address strobe signal

 

 

 

 

 

 

 

 

0

R/W

 

 

 

 

D7

A18RD

Area 18, 17 read signal

1

 

Enabled

 

 

0

Disabled

0

R/W

 

 

 

 

D6

A16RD

Area 16, 15 read signal

 

 

 

 

 

 

 

 

0

R/W

 

 

 

 

D5

A14RD

Area 14, 13 read signal

 

 

 

 

 

 

 

 

0

R/W

 

 

 

 

D4

A12RD

Area 12, 11 read signal

 

 

 

 

 

 

 

 

0

R/W

 

 

 

 

D3

–

reserved

 

 

 

 

 

–

 

0

–

0 when being read.

 

 

 

D2

A8RD

Area 8, 7 read signal

1

 

Enabled

 

 

0

Disabled

0

R/W

 

 

 

 

D1

A6RD

Area 6 read signal

 

 

 

 

 

 

 

 

0

R/W

 

 

 

 

D0

A5RD

Area 5, 4 read signal

 

 

 

 

 

 

 

 

0

R/W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BCLK select

004813A

D7–4

–

reserved

 

 

 

 

 

–

 

0

–

0 when being read.

 

register

(B)

D3

A1X1MD

Area 1 access-speed

1

 

2 cycles

 

0

4 cycles

0

R/W

x2 speed mode only

 

 

 

D2

–

reserved

 

 

 

 

 

–

 

0

–

0 when being read.

 

 

 

D1

BCLKSEL1

BCLK output clock selection

BCLKSEL[1:0]

 

 

BCLK

0

R/W

 

 

 

 

D0

BCLKSEL0

 

 

1

1

 

 

PLL_CLK

0

 

 

 

 

 

 

 

 

 

1

0

 

 

OSC3_CLK

 

 

 

 

 

 

 

 

 

 

0

1

 

 

BCU_CLK

 

 

 

 

 

 

 

 

 

 

0

0

 

 

CPU_CLK

 

 

 

 

S1C33L03 PRODUCT PART

EPSON

A-43