SPI/Microwire-Compatible

UART in QSOP-16

18

______________________________________________________________________________________

Table 10. Synchronous Data Output Format (DOUT pin to microprocessor, SPI MISO)

FEN

0

SHDNo

0

PM

0

RAM

0

TM

0

RM

0

PE

0

L

0

B1

0

B0

0

B3

0

B2

R

Read

Config

0

R

Write

Config

IR

(IrDA)

0

ST

0

0

0

0

0

CTS

T

T

CTS

Pr

Pr

0

0

RA/

FE

RA/

FE

D5r

D5r

D4r

D4r

D1r

D1r

D0r

D0r

D3r

D3r

D2r

R

Read

Data

D2r

R

Write

Data

D7r

D7r

D6r

D6r

T

T

__________MAX3100 Synchronous-to-Asynchronous SPI UART at a Glance

Table 9. Synchronous Data Input Format (DIN pin from microprocessor, SPI MOSI)

0

0

D6t

0

D7t

0

Write

Data

1

D2t

Read

Data

0

0

D3t

0

D0t

0

D1t

0

D4t

0

D5t

0

TE

0

0

0

Pt

0

RTS

0

0

0

0

0

1

1

ST

0

IR

(IrDA)

0

Write

Config

1

B2

Read

Config

0

0

B3

0

Bit Number

B0

TEST

B1

0

L

0

PE

0

RM

0

TM

0

RAM

0

PM

0

SHDNi

0

FEN

0

14

6

7

15

2

Oper-

ation

3

0

1

4

5

10

11

8

9

12

13

Bit Number

13

12

9

8

11

10

5

4

1

0

3

Oper-

ation

2

15

7

6

14