EMS6500 EM Microelectronic, EMS6500 Datasheet - Page 76
EMS6500
Manufacturer Part Number
EMS6500
Description
Microcontroller Development System 4-bit (Emmon), Simulators 4-bit
Manufacturer
EM Microelectronic
Datasheet
1.EMS6500.pdf
(143 pages)
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4.
Copyright 2003 EM Microelectronic-Marin SA
EM6507
4.1.
The peripheral interface module for the EM6507 is shown below.
Port A is an input port with individual maskable interrupts. The circular LED’s as well
as the push buttons indicates the state of port A (address 072H) and can have
values shown in Table 4-1
to change the state of the port click on the corresponding button.
The state of the interrupt mask for port A (address 073H) is shown next to the
button. The possible interrupt mask states are shown in Table 4-2.
LED state
Port A
Symbol
Red
Yellow
Table 4-1 Possible input Table port states
Table 4-2 Representation of possible IRQ mask states.
State
Interrupt generated on the falling edge of the port
Interrupt generated on the rising edge of the port
Interrupt disabled
Button
Fig. 4.1 Peripheral interface for the EM6507 microcontroller
H
L
State
Port high
Port low
12
Peripheral Interface
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EM66xx
Binder 4.3-01/03 Rev. B/495
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