ST72E121J4D0 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72E121J4D0

8-BIT MCU WITH 8 TO 16K OTP/EPROM, 384 TO 512 BYTES RAM, WDG, SCI, SPI AND 2 TIMERS

STMicroelectronics 

ST72E121 ST72T121

SERIAL PERIPHERAL INTERFACE (Cont’d)

Table 18. SPI Register Map and Reset Values

Address

(Hex.)

21

22

23

Register

Name

DR

Reset Value

CR

Reset Value

SR

Reset Value

7

D7

x

SPIE

0

SPIF

0

6

D6

x

SPE

0

WCOL

0

5

D5

x

SPR2

0

-

0

4

D4

x

MSTR

0

MODF

0

3

D3

x

CPOL

x

-

0

2

D2

x

CPHA

x

-

0

1

D1

x

SPR1

x

-

0

0

D0

x

SPR0

x

-

0

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