COP8SA-DM National Semiconductor, COP8SA-DM Datasheet - Page 48
COP8SA-DM
Manufacturer Part Number
COP8SA-DM
Description
MODULE DEBUGGING FOR COP8SA
Manufacturer
National Semiconductor
Datasheet
1.DM-COP820D.pdf
(254 pages)
Specifications of COP8SA-DM
Module/board Type
Debugger Module
For Use With/related Products
Cop 8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*COP8SA-DM
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Port G has the following dedicated functions:
Port C is an 8-bit I/O port. The 40-pin device does not have a full complement of Port C
pins. The unavailable pins are not terminated. A read operation on these unterminated
pins will return unpredictable values. Only the COP8SAC7 device contains Port C. The
20/28 pin devices do not offer Port C. On these devices, the associated Port C Data and
Configuration registers should not be used.
Port F is an 8-bit I/O port. The 28--pin device does not have a full complement of Port F
pins. The unavailable pins are not terminated. A read operation on these unterminated
pins will return unpredictable values.
Port D is an 8-bit output port that is preset high when RESET goes low. The user can tie
two or more D port outputs (except D2) together in order to get a higher drive.
NOTE:
2-10
G0
G2
G3
G4
G5
G6
G1
G7
COP8SAx7 MICROCONTROLLER
INTR (External Interrupt Input)
T1B (Timer T1 Capture Input)
T1A (Timer T1 I/O)
SO (MICROWIRE Serial Data Output)
SK (MICROWIRE Serial Clock)
SI (MICROWIRE Serial Data Input)
WDOUT WATCHDOG and/or Clock Monitor if WATCHDOG enabled, other-
wise it is a general purpose I/O
CKO Oscillator dedicated output or general purpose input
Care must be exercised with the D2 pin operation. At RESET, the external
loads on this pin must ensure that the output voltages stay above 0.7 V
to prevent the chip from entering special modes. Also keep the external
loading on D2 to less than 1000 pF.
Figure 2-5 I/O Port Configurations–Output Mode
N
E
R
N
A
B
U
S
T
L
I
PORT L, G, AND C, F
Port read into a RAM address location
0 = Low
1 = High
CONFIGURATION
1 = Output
REGISTER
REGISTER
DATA
CC
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