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032
043
047
051
054
065
071
072
073
074
5.9 Description of Semiconductor Devices
The distribution of each pin goes as the table 3.
Table 3---Definition of CPU Base Pin:
Pin
Type
Pin Name
1
O
2
O
3
I
4
O
5
O
6
S
VBAT
7
O
PC13
8
O
PC14
9
O
PC15
10
S
VSS_5
11
S
VDD_5
12
I
OSC_IN
13
O
OSC_OUT
14
I
RESET
15
I
PC0/EXTI0
16
I
PC1/EXTI1
17
I
PC2/EXTI2
PC3/EXTI3/
18
I
AD123_IN13
19
S
VDD
20
S
VSS
21
S
VREF+
131
243
132
244
134
245
143
251
152
261
155
263
156
265
162
271
165
306
172
311
Port Name
PE2
FLASH_CS
FLASH_SCLK/
PE3
LCD_DB6
PE4
FLASH_SDO
FLASH_SDI/
PE5
LCD_DB7
PE6
DMR_SLEEP
VBAT
TX_LED
RX_LED
LAMP
VSS_5
VDD_5
OSC_IN
OSC_OUT
RESET
TIME_SLOT_INTE
R
SYS_INTER
RF_TX_INTER
RF_RX_INTER
VDD
VSS
VREF+
BR200D-U1/BR300D-U1 Service Manual
351
364
365
371
411
412
413
423
431
432
Function
SPI Flash Chip Select
SPI Flash Serial Clock/
LCD_DB6(multiplexing)
SPI Flash Serial Data
SPI Flash Serial Data Output(MCU)/
LCD_DB7(multiplexing)
DMR POWERDOWN(High Active)
Connected to VDD
TX_LED(High Active)
RX LED(High Active)
Keyboard Lamp(High Active)
Connected to VSSA.
Connected to 3.3V.
8MHz Crystal Input
8MHz Crystal Output
Reset Input(Low Active)
DMR TIME_SLOT Interrupt
DMR SYS Interrupt
DMR RF_TX中 Interrupt
DMR RF_RX Interrupt
Connected to 3.3V。
Connected to VSSA
Connected to 3.3V.
31
503
664
506
703
516
712
532
723
546
731
565
732
606
734
612
743
624
754
627
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