PEB 20571 F V3.1 Infineon Technologies, PEB 20571 F V3.1 Datasheet - Page 269

• Manufacturer Part Number: PEB 20571 F V3.1
• Description: IC LINE CARD CTRLR DSP TQFP-100
• Manufacturer: Infineon Technologies

Specifications of PEB 20571 F V3.1

• Function: PBX Controller with DSP
• Interface: ISDN
• Voltage - Supply: 3.13 V ~ 3.47 V
• Current - Supply: 272.6mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-LFQFP
• Includes: Layer-1 Control, Signaling Control, Signal Processing, Voice Channel Handling
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Number Of Circuits: -
• Other names: PEB20571FV3.1X; PEB20571FV31XP; SP000007539

Figure 60
Note: R/W is described in Normal mode. In Fly-by mode, R/W should be low during DMA
8.6.1.2
In this mode R and W are used for timing the access and to determine whether it’s a
DMA-read cycle or DMA-write cycle. R and W input signals are used in opposite ways in
Normal mode and in Fly-By mode. The next table details the way in which R and W
should be used in each mode, during DMA transactions:
Data Sheet
DS
DACK
R/W
D
DREQR
read transactions.
DMA Access Timing In Intel/Infineon Mode
DMA Read-Transaction Timing in Motorola Mode
t
t
SRWS
SAS
t
WS
Electrical Characteristics and Timing Diagrams
252
t
t
HSA
t
WS
HSRW
t
last byte
DSDV
t
DSR
t
DSDT
PEB 20570
PEB 20571
2003-07-31