MT8889CN Zarlink Semiconductor, Inc., MT8889CN Datasheet - Page 24

• Manufacturer Part Number: MT8889CN
• Description: Integrated DTMF Transceiver with Adaptive Micro Interface
• Manufacturer: Zarlink Semiconductor, Inc.

DS
R/W
Read
AD3-AD0
(RS0, D0-D3)
Write
AD3-AD0
(RS0-D0-D3)
Addr *
non-mux
AS *
CS = AS.Addr
* microprocessor pins
* microprocessor pins
ALE*
RD
P0*
(RS0,
D0-D3)
P2 *
(Addr)
CS = ALE.Addr
Figure 20 - MC68HC11 Bus Timing (with multiplexed address and data buses)
t
Figure 21 - 8031/8051/8085 Read Timing Diagram
AS
A0-A7
t
AS
t
AH
t
t
AH
CSS
Addr
Addr
Zarlink Semiconductor Inc.
t
RWS
t
CSS
MT8889C
High Byte of Addr
A8-A15 Address
24
t
DDR
t
CSH
t
DDR
t
CSH
Data
t
DSW
t
DHR
Data
t
Data
DHR
t
DHW
t
RWH
Data Sheet