vsc055xkm-01 Maxim Integrated Products, Inc., vsc055xkm-01 Datasheet - Page 130

• Manufacturer Part Number: vsc055xkm-01
• Description: Enhanced I?c Backplane Controller
• Manufacturer: Maxim Integrated Products, Inc.

Table 30. I/O Ports (continued)
Table 31. Test
Table 32. Power Supplies
Revision 4.1
January 2008
Pin Name
Pin Name
Pin Name
VDD2
TEST
VSS2
VDD
P7.7
P7.6
P7.5
P7.4
P7.3
P7.2
P7.1
P7.0
VSS
Pin Number
3, 16, 29, 41, 53, 66, 79, 91
2, 15, 28, 40, 52, 65, 78, 90
Pin No.
25
26
30
31
32
33
34
35
7
Pin Number
27, 77
4, 54
Bidirectional
Type
Input
I/O
Description
Functional Test
This pin allows the device to be placed in specific test modes for device
level testing. Connect to V
130 of 133
Description
I/O Port 7, Bypass I/Os
Port 7 is a dedicated 8-bit bidirectional I/O port. The user can select
between an input, totem pole output, or open-drain or open-source
output. Capability to detect input edge changes and select various
output flashing rates is also available.
Through bit control register setup, each odd-numbered bit of this port
can be enabled as an output, which on a pair-by-pair basis, reflects the
current state of each even-numbered bit of this port. Individual control
is provided that allows programming each output as a totem pole or an
open-drain/source driver.
Ground
Ground
Power
Power
I/O
Description
I/O Power Supply
These pins are the power sources for the I/O drivers of all
non-analog output and bidirectional pins.
I/O Ground
These pins are the ground connections for the I/O drivers
of all non-analog output and bidirectional pins.
Digital Core Power Supply
These pins are the power sources for the digital core
logic and receivers of all non-analog input and
bidirectional pins.
Digital Core Ground
These pins are the ground connections for the digital
core logic and receivers of all non-analog input and
bidirectional pins.
SS
for normal operation.
VSC055-01
Data Sheet