ia186xl Innovasic Semiconductor Inc., ia186xl Datasheet - Page 33

• Manufacturer Part Number: ia186xl
• Description: 16-bit Microcontroller
• Manufacturer: Innovasic Semiconductor Inc.

IA186XL/IA188XL
16-Bit Microcontrollers
Table 8. IA188XL Pin/Signal Descriptions (Continued)
mcs0_n
mcs1_n mcs1_n/error_n
mcs2_n
mcs3_n
qsmd_n
pcs0_n
pcs1_n
pcs2_n
pcs3_n
pcs4_n
pcs5_n
pcs6_n
lock_n
Signal
nps_n
pereq
res_n
rd_n
n.c.
nmi
qs0
qs1
mcs3_n/nps_n
mcs3_n/nps_n
mcs0_n/pereq
mcs0_n/pereq
rd_n/qsmd_n
rd_n/qsmd_n
pcs5_n/a1
pcs6_n/a2
wr_n/qs1
mcs2_n
pcs0_n
pcs1_n
pcs2_n
pcs3_n
pcs4_n
ale/qs0
lock_n
Name
res_n
n.c.
nmi
®
PLCC
NA
48
38
37
36
35
46
35
25
27
28
29
30
31
32
38
61
63
62
62
24
Pin
UNCONTROLLED WHEN PRINTED OR COPIED
14, 15,
24, 43,
44, 62,
PQFP
2, 11,
28
39
40
41
42
63
30
42
54
52
51
50
49
48
47
39
10
55
8
9
9
ENG211080711-01
Page 33 of 72
35, 55,
LQFP
4, 25,
45
57
58
59
60
72
47
60
71
69
68
67
66
65
64
57
29
27
28
28
73
lock. Output. Active Low. When asserted
(low), this signal indicates that the bus cycle in
progress is cannot be interrupted. While
lock_n is active, the IA186XL will not service
bus requests such as HOLD.
When resin_n is active, this pin is weakly held
high and must not be driven low.
mid-range memory chip select
not connected
non-maskable interrupt. Input. Active High.
When the nmi signal is asserted (high) it
causes a Type 2 interrupt .
numeric processor select
peripheral chip select signals 0–6
numerics coprocessor external request.
Input. Active High. When asserted (high),
this signal indicates that a data transfer
between an Intel 80C187 Numerics
Coprocessor.and memory is pending.
queue status 0, queue status 1
queue status mode
read. output. Active Low. When asserted
(low), rd_n indicates that the accessed
memory or I/O device must drive data from
the location being accessed onto the data
bus.
res_n causes the processor to immediately
terminate its present activity, clear the internal
logic, and enter a dormant state.
Description
Preliminary Data Sheet
September 30, 2008
http://www.Innovasic.com
Customer Support:
1-888-824-4184