TS68HC901 datasheet(10/42 Pages) STMICROELECTRONICS

부품명	TS68HC901

상세설명	HCMOS MULTI-FUNCTION PERIPHERAL

PDF	42 Pages

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IV3

IV2

IV1

IV0

V7-V4

The four most significant bits are copied from the register

IV3-IV0

These bits are supplied by the CMFP. They are the binary channel number of the highest

priority channel that is requesting interrupt service.

Figure 6 :

VECTOR REGISTER

(17h)

Wr iting 0 : CLEAR ED

Wr iting 1 : SET

C LEAR ED on RESET

V7-V4

The upper four bits of the vector register are written by the user. These bits become the most

significant four bits of the interrupt vector number.

In-Service Register Enable. When the S bit is zero, the CMFP is in the automatic end-of-in-

terrupt mode and the In-Service register bits are forced low. When the S bit is a one, the

CMFP is in the software end-of-interrupt mode and the In-Service register bits are enabled.

Unused bits, read as zero.

Figure 7 :

TS68HC901

Figure 8 : Daisy Chaining

TS68HC901

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TS68HC901 데이터시트(PDF) 10 Page - STMicroelectronics