IA82527
Data Sheet
CAN Serial Communications Controller
December 20, 2012
2.2
Pin/Signal Descriptions
Descriptions of the pin and signal functions for the IA82527 Serial Communications Controller
are provided in Table 3.
Several of the IA82527 pins have different functions depending on the operating mode of the
device. Each of the different signals supported by a pin is listed and defined in Table 3, indexed
alphabetically in the first column of the table. Additionally, the name of the pin associated with
the signal as well as the pin numbers for both the PLCC and PQFP packages are provided in the
“Pin” column. If the signal and pin names are the same, no entry is provided in the “Pin-Name”
column.
Table 3. Pin/Signal Descriptions
Pin
Signal
a0
Name
a0/ad0/icp
a1/ad1/cp
a2/ad2/csas
a3/ad3/ste
a4/ad4/mosi
a5/ad5
PLCC PQFP
Description
4
42
41
40
37
36
35
34
33
42
41
40
37
36
35
34
33
32
31
30
29
28
27
26
25
address bits 7–0. Input. Mode 3. When the IA82527
is configured to operate in the 8-bit non-multiplexed
non-Intel architecture mode (Mode 3), these lines
provide the 8-bit address bus input to the device.
a1
3
a2
2
a3
43
42
41
40
39
4
a4
a5
a6
a6/ad6/sclk
a7/ad7
a7
ad0
ad1
ad2
ad3
ad4
ad5
ad6
ad7
a0/ad0/icp
a1/ad1/cp
address/data bits 15–0. Input/Output. Mode 1. When
the IA82527 is configured to operate in the 16-bit
multiplexed Intel architecture mode (Mode 1), these
lines provide the 16-bit address bus (input) and the
16-bit data bus (input/output) for the device.
3
a2/ad2/csas
a3/ad3/ste
2
43
42
41
40
39
38
37
36
35
34
33
32
31
a4/ad4/mosi
a5/ad5
a6/ad6/sclk
a7/ad7
ad8
ad9
ad8/d0/p1.0
ad9/d1/p1.1
ad10/d2/p1.2
ad11/d3/p1.3
ad12/d4/p1.4
ad13/d5/p1.5
ad14/d6/p1.6
ad15/d7/p1.7
ad10
ad11
ad12
ad13
ad14
ad15
IA211080504-07
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