AMD Am188TMER, Am186TMER user manual Clkouta

Figure 3-1 Am186ER Microcontroller Address Bus—Normal Read and Write Operation

			t1	t2		t3		t4
	Address				Data
CLKOUTA		Phase			Phase
A19–A0				Address
AD15–AD0			Address				Data
(Read)
AD15–AD0			Address				Data

(Write) LCS or UCS

MCSx, PCSx

Figure 3-2 Am186ER Microcontroller—Read and Write with Address Bus Disable In Effect

CLKOUTA

A19–A0

AD7–AD0

(Read)

AD15–AD8

(Read)

AD15–AD0

(Write)

		t1	t2		t3	t4
Address				Data
	Phase			Phase

Address

Data

Data

Data

LCS, UCS

System Overview 3-19