PEB20571 INFINEON [Infineon Technologies AG], PEB20571 Datasheet - Page 33

• Manufacturer Part Number: PEB20571
• Description: ICs for Communications
• Manufacturer: INFINEON [Infineon Technologies AG]

Table 2-4
Pin
No.
25
24
23
22
21
18
17
16
38
35
34
33
32
31
30
11
10
12
Preliminary Data Sheet
Symbol In (I)
D7
D6
D5
D4
D3
D2
D1
D0
A6
A5
A4
A3
A2
A1
A0
DREQR O
DREQT O
CS
Microprocessor Bus Interface Pins (DELIC-LC)
Out (O)
I/O
The direction of these pins
depends on the value of the
following pins:
CS, RD/DS, WR / R/W and
MODE
I
I
During
Reset
I
CLOCK
MASTER
Strap
(internal
pull-down),
refer to
Table 2-19
EMUL-
ATION
BOOT
Strap
(internal
pull-down),
refer to
Table 2-19
I
After
Reset
I
L
L
I
2-6
Function
Data Bus
Note: When operated in address/data
Address Bus (bits 6 ... 0)
Note: When operated in address/data
Strap pin
Strap pin
Chip Select
A "low" on this line selects all registers
for read/write operations.
multiplex mode, this bus is used
as a multiplexed AD bus. The
Address
connected to the AD bus.
multiplex mode, this bus is used
as a multiplexed AD bus. The
Data
connected to the AD bus.
pins
pins
Pin Descriptions
are
are
PEB 20571
externally
externally
DELIC
2003-08