SCN26562 查看數據表（PDF） - Philips Electronics

零件编号

产品描述 (功能)

生产厂家

SCN26562

Dual universal serial communications controller (DUSCC)

Philips Electronics 

Philips Semiconductors

Dual universal serial communications controller (DUSCC)

Product specification

SCN26562

AC ELECTRICAL CHARACTERISTICS (Continued)

IRQN

IACKN

D7–D0

INTERRUPT REQUEST LOCKED

VECTOR SETTLING

tIALDDV

VECTOR

LOCKED

C

B

tIAHDDI

A

A

A

C

tIAHDDF

NOTES:

A ICR[5:4] = 01 or 10 (mode 1 or mode 2)

B Call instruction (mode 2)

C ICR[5:4] = 11 (mode 3)

Figure 6. Interrupt Acknowledge Cycle

SERVICE

ROUTINE

Cleared

through

software

SD00208

SYMBOL

PARAMETER

tIALDDV

tIAHDDF

tIAHDDI

IACKN low to data bus valid

IACKN high to data bus floating

IACKN high to data bus invalid

LIMITS

SCN26562C4

SCN26562C2

Min

Max

Min

Max

280

280

10

150

10

150

UNIT

ns

ns

ns

CEN

WRN

GPO1_N

AND/OR

GPO2_N

OLD DATA

tWRHGOV

NEW DATA

Figure 7. Output Port Timing

SYMBOL

PARAMETER

tWRHGOV WRN high to GPO output data valid

LIMITS

SCN26562C4

SCN26562C2

Min

Max

Min

Max

300

300

SD00209

UNIT

ns

1995 May 1

9

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