PEB22554 SIEMENS [Siemens Semiconductor Group], PEB22554 Datasheet - Page 206

• Manufacturer Part Number: PEB22554
• Description: ICs for Communications
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Table 14
Data Bus Access (16-Bit Motorola Mode)
BLE
0
0
1
1
Table 15
Selectable Bus and Microprocessor Interface Configuration
ALE
GND/VDD
GND/VDD
switching
The assignment of registers with even/odd addresses to the data lines in case of 16-bit
register access depends on the selected microprocessor interface mode:
Siemens/Intel
Motorola
Data Lines
n: even address
Complete information concerning register functions is provided in – Detailed Register
Description.
Semiconductor Group
A0
0
1
0
1
IM
1
0
0
Register Access
Register word access (even addresses)
FIFO word access
Register byte access (odd addresses)
Register byte access (even addresses)
No transfer performed
D15
Motorola
Intel
Microprocessor Interface
Intel
(Adr. n + 1)
(Adr. n)
206
D8
D7
Functional Description T1 / J1
QuadFALC Data Pins
Used
D0 – D15
D0 – D7
D8 – D15
None
Bus Structure
demultiplexed
demultiplexed
multiplexed
(Adr. n + 1)
(Adr. n)
PEB 22554
D0
09.98