u4091bm-r ATMEL Corporation, u4091bm-r Datasheet - Page 11

• Manufacturer Part Number: u4091bm-r
• Description: Programmable Telephone Audio Processor
• Manufacturer: ATMEL Corporation

U4091BM-R
Figure 10-1. Write Cycle
Write cycle
CLOCK
DATA
D7
D6
D5
D4
D3
D2
D1
D0
A3
A2
A1
A0
R/W=0
Data from P
Strobe
from P
Figure 10-2. Normal Read Cycle
Normal read cycle
CLOCK
DATA
A3
A2
A1
A0
R/W = 1
D7
D6
D5
D4
D3
D2
D1
D0
Strobe
Data from µP
Data from U4091BM
from µP
Figure 10-3. Fast Read Cycle
Fast read cycle
CLOCK
DATA
D7=IZC
D6=IVE
Data from U4091BM
Strobe
from µP
11
4872A–CORD–08/05