83C196EA Datasheet, PDF (10/40 Pages) Intel Corporation – CHMOS 16-BIT MICROCONTROLLER

83C196EA CHMOS 16-BIT MICROCONTROLLER — AUTOMOTIVE
Name
ANGND
V_CC
V_SS
V_REF
Name
NC^{††â€} 
Table 3. Pin Assignment Arranged by Functional Categories (Continued)
Power & Ground
Processor Control
Pins
Name
Pin
87
9, 10, 30, 46^†, 51, 60, 66^††, 92, 100, 127, 152
CLKOUT
52
EA#
45
11, 12, 29, 50, 61, 68, 69, 94, 101, 128, 151
EXTINT
57
88
NMI
89
ONCE#
53
No Connection
PLLEN
47
Pins
RESET#
90
39–44, 67, 69, 80, 91, 93, 121
RPD
21
TMODE#
22
XTAL1
49
XTAL2
48
† _{This pin supplies voltage to the phase-locked loop circuitry, so use extra}
care to keep it stable.
†† _{This pin supplies voltage to code RAM. To retain data, maintain 5 volts.}
††† _{Always leave NC (no connect) pins unconnected to prevent accidental}
entry into test modes.
Code Debug
Name
Pin
CRBUSY#
62
CRDCLK
65
CRIN
64
CROUT
63
4.0 SIGNALS
Name
A15:0
A20:16
ACH15:0
Type
I/O
I/O
I
Table 4. Signal Descriptions
Description
System Address Bus
These address lines provide address bits 0–15 during the entire external
memory cycle during both multiplexed and demultiplexed bus modes.
Address Lines 16–20
These address lines provide address bits 16–20 during the entire external
memory cycle, supporting extended addressing of the 2 Mbyte address space.
NOTE: Internally, there are 24 address bits; however, only 21 external
address pins (A20:0) are implemented. The internal address space is
16 Mbytes (000000–FFFFFFH) and the external address space is 2
Mbytes (00000–1FFFFFH). The device resets to FF2080H in internal
memory or 1F2080H in external memory.
A20:16 are multiplexed with EPORT.4:0.
Analog Channels
These pins are analog inputs to the A/D converter.
The ANGND and V_REF pins must be connected for the A/D converter to function.
6
ADVANCE INFORMATION