ia82527 Innovasic Semiconductor Inc., ia82527 Datasheet - Page 19

• Manufacturer Part Number: ia82527
• Description: Serial Communications Controller?can Protocol
• Manufacturer: Innovasic Semiconductor Inc.

IA82527
CAN Serial Communications Controller
Table 3. Pin/Signal Descriptions (Continued)
mode0
mode1
Signal
mosi
a4/ad4/mosi
mode0
mode1
Name
Pin
PLCC
44
30
42
PQFP
38
24
36
modeN (N = 1 or 0). Input. The logic levels at the
mode0 and mode1 inputs determine the operating
mode (i.e., interface type) of the IA82527 as follows:
mode1 mode0
The mode1 and mode0 inputs are also used to
establish the Serial Interface Mode as follows: when
the IA82527 is reset, if
the Serial Interface Mode will be selected.
The mode1 and mode0 pins are internally connected
to weak pull-downs. These pins will be pulled low
during reset if unconnected. Following reset, these
pins will float.
master out slave in. Input. Serial Interface Mode.
When the IA82527 is configured to operate with a
serial interface, mosi is the serial data input.
IA211080504-02
Page 19 of 53
mode1 = 0
mode0 = 0
rd_n = 0
wr_n = 0
0
0
1
1
0
1
0
1
8-bit multiplexed Intel
16-bit multiplexed Intel
8-bit multiplexed non-Intel
8-bit Non-multiplexed non-Intel
Interface Type
Description
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March 12, 2009
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