IA186EB/IA188EB
Data Sheet
8-Bit/16-Bit Microcontrollers
July 10, 2011
Table 7. IA186EB Pin/Signal Descriptions (Continued)
Pin
Signal
oscout
Description
Name
oscout
PLCC
40
LQFP
27
PQFP
70
oscillator output. Output. The oscout pin is
the output connection for an external crystal
that drives the IA186EB internal Pierce
oscillator. (When an external crystal is used, it
is connected between this pin and the clkin pin.
See clkin table entry.)
Note: If an external oscillator or clock source is
used to drive the IA186EB instead of a crystal,
oscout must be left unconnected (i.e., must
float). When the IA186EB is operating in the
ONCE mode, oscout does not float.
p1.0
p1.1
p1.2
p1.3
p1.4
p1.5
p1.6
p1.7
p2.0
p1.0/gcs0_n
p1.1/gcs1_n
p1.2/gcs2_n
p1.3/gcs3_n
p1.4/gcs4_n
p1.5/gcs5_n
p1.6/gcs6_n
p1.7/gcs7_n
p2.0/rxd1
28
27
26
25
24
21
20
19
57
16
15
14
13
12
9
8
7
44
59
58
57
56
55
52
51
50
7
port 1, Bit [N] (N = 0–7). Output. Each pin of
Port 1, p1.0–p1.7, can function individually as a
general-purpose output line.
port 2, Bit [0]. Input/Output. This pin functions
as a general-purpose I/O line.
p2.1
p2.2
p2.3
p2.4
p2.5
p2.6
p2.1/txd1
p2.2/bclk1
p2.3/sint1
p2.4/cts1_n
p2.5/bclk0
p2.6
58
59
55
56
54
50
45
46
42
43
41
37
8
9
port 2, Bit [1]. Output. This pin functions as a
general-purpose output line.
port 2, Bit [2]. Input. This pin functions as a
general-purpose input line.
port 2, Bit [3]. Output. This pin functions as a
general-purpose output line.
port 2, Bit [4]. Input. This pin functions as a
general-purpose input line.
port 2, Bit [5]. Input. This pin functions as a
general-purpose input line.
port 2, Bit [6]. Input/Output (open drain). This
pin functions as a general-purpose bidirectional
input/output line.
5
6
4
80
p2.7
p2.7
49
36
79
port 2, Bit [7]. Input/Output (open drain). This
pin functions as a general-purpose bidirectional
input/output line.
IA211080314-13
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