PEB20256E-V21 Infineon Technologies, PEB20256E-V21 Datasheet - Page 101

• Manufacturer Part Number: PEB20256E-V21
• Description: IC CONTROLLER INTERFACE 388-BGA
• Manufacturer: Infineon Technologies

Specifications of PEB20256E-V21

• Function: Multichannel Network Interface Controller (MUNICH)
• Interface: HDLC, PPP, Serial, TMA
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 200mA
• Power (watts): 3W
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 388-BBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Circuits: -
• Other names: PEB20256E-V21; PEB20256E-V21IN

5.3
The Local Microprocessor Interface is a demultiplexed switchable Intel or Motorola style
interface with master and slave functionality. The MUNICH256 provides a local clock
output LCLK, which is a feed through of the PCI system clock as clock reference for the
local microprocessor interface. The local bus master capability allows to access
peripherals located on the local bus via the PCI interface. Bit FCONF.LME enables the
bus master capability.
The base address register two is disabled per default and can be enabled during start-
up of the internal PCI interface. This is done by setting bit MEM.BAR2 in the PCI
configuration space.
The MUNICH256 supports a maximum of three 8 kByte pages of memory on the local
address bus. The correspondence between the accessed PCI memory space (mapped
via base address register 2) and the asserted chip selects is shown in table 5-1. The
mapping of the PCI byte enables to the local bus address is dependent on the selected
bus mode and is explained in detail in the corresponding section.
Table 5-1
Data Sheet
Page
0
1
2
3
Local Microprocessor Interface
Correspondence between PCI memory space and chip select
0000
2000
4000
6000
AD(14:0)
H
H
H
H
- 1FFF
- 3FFF
- 5FFF
- 7FFF
H
H
H
H
101
LCS2
1
0
0
Not valid
LCS1
0
1
0
Interface Description
PEB 20256 E
PEF 20256 E
04.2001