FLIR Commercial Systems Inc. RT30 Manuale Utente
RT30
™ Engineering Design Specification
Page 10 of 20
5.1.2
RU I/O Port Usage
Port Pin
# Direction
Signal
Description
RA0
19
n/a
ICPDAT
Programming use only
RA1
18
n/a
ICPCLK
Programming use only
RA2
17
Out
DATCE
nRF905 TX/RX enable
RA3
4
n/a
ICVPP
Programming use only
RA4 3
In SPIO1
Reserved
(1)
RA5 2
In SWIN
Mode
Switch
input
RB4
13
In
RFRX
SPI port MISO
RB5
12
In
DRDY
nRF905 Data Ready
RB6
11
Out
RFCLK
SPI port clock
RB7
10
Out
RFCS
nRF905 Command Enable
RC0
16
In
RFDET
nRF905 RF Detect
RC1
15
In
ADDROK
nRF905 Address Match
RC2 14
In TRIPLED
Detect
LED
RC3
7
Out
BUZZER
Piezo Buzzer driver
(2)
RC4
6
Out
BUZZER
Piezo Buzzer driver
(2)
RC5 5
Out RFLED
Communication
LED
RC6
8
Out
BUZZER
Piezo Buzzer driver
(2)
RC7
9
Out
RFTX
SPI port MOSI
Notes: 1.
Future
expansion.
2.
These lines are paralleled to satisfy the drive requirements of the buzzer.
5.1.3 System
ROM
The RT30 TU and RU will use the built-in 4KB (2K words) Flash ROM of the PIC16F677 to store execution code
for the MCU. This memory is re-programmable in the system, using an on-board connector.
for the MCU. This memory is re-programmable in the system, using an on-board connector.
5.1.4 System
RAM
The RT30 TU and RU will use the built-in 128 bytes of RAM in the PIC16F677.
5.1.5 EEPROM
The RT30 TU and RU will use the PIC16F677’s built-in 256 bytes of EEPROM for any necessary non-volatile
storage.
storage.
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