EM6517 ETC, EM6517 Datasheet - Page 13

• Manufacturer Part Number: EM6517
• Description: 4 BIT MICROCONTROLLER
• Manufacturer: ETC

7
The EM6517-1 has one input port and two bi-directional ports.
7.1 Ports overview
Table 7.1.1 Input and Output Ports Overview
Mask options ( M: )are valid for ROM version only
Port
PA
[3:0]
PB
[3:0]
PC
[3:0]
Input and Output ports
Mode
Input
Individual
input or
output
Port-wise
input /
output
Mask(M:) or Register(R:)
Option
M: Pull-up
M: Pull-down (default)
R: Pull enabling
R: Debouncer or direct
R: + or - for IRQ-edge
R: Input reset
R: CMOS or
R: Pull-down on input
R: Pull-up on input
M: Pull-up
M: Pull-down
R: CMOS or
R: Pull-down on input
R: Pull-up on input
M: Pull-up
M: Pull-down
Nch. open drain output
Nch. open drain output
input for IRQ requests
and Counter
and counter
combination
FOR ENGINEERING ONLY
Function
-Input
-Bit-wise interrupt request
-Software test variable
-PA[3],PA[0] input for the
-Port A reset inputs
-Input or output
-PB[3] for the PWM
-PB[2:0] for the
-Tristate output
-Input or output
-Tristate output
event counter
output
output
Ck[11,16,12]
conditional jump
Bit-wise Multifunction on Ports
package
counter
only in
output
28 pin
PA[3]
PB[3]
PC[3]
10 bit
event
PWM
clock
-
package
Ck[11]
only in
output
28 pin
PA[2]
PB[2]
PC[2]
© EM Microelectronic-Marin SA, 09/99, Rev. A/277
-
-
TestVar2
Ck[16]
output
PA[1]
PB[1]
PC[1]
EM6517
-
TestVar1
counter
Ck[12]
output
PA[0]
PB[0]
PC[0]
10 bit
event
clock
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