AM79C90 データシートの表示（PDF） - Advanced Micro Devices

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AM79C90

CMOS Local Area Network Controller for Ethernet (C-LANCE)

Advanced Micro Devices 

AMD

DAL0–DAL15

DAS

PRELIMINARY

See

Note 1

Read Data

READ

READY

(Output from

C-LANCE)

HOLD

CS

ADR

Note:

1. There are two types of delays which depend on which internal register is accessed.

Type 1 refers to access of CSR0, CSR3 and RAP.

Type 2 refers to access of CSR1 and CSR2 which are longer than Type 1 delay.

Figure 3. Bus Slave Read Timing

O.D.

17881B-9

14

Am79C90

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