BR200D-U1/BR300D-U1
Service Manual
31
032
131
243
351
503
664
043
132
244
364
506
703
047
134
245
365
516
712
051
143
251
371
532
723
054
152
261
411
546
731
065
155
263
412
565
732
071
156
265
413
606
734
072
162
271
423
612
743
073
165
306
431
624
754
074
172
311
432
627
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
Port Name
Function
1
O
PE2
FLASH_CS
SPI Flash Chip Select
2 O
PE3
FLASH_SCLK/
LCD_DB6
SPI Flash Serial Clock/
LCD_DB6(multiplexing)
3
I
PE4
FLASH_SDO
SPI Flash Serial Data
4 O
PE5
FLASH_SDI/
LCD_DB7
SPI Flash Serial Data Output(MCU)/
LCD_DB7(multiplexing)
5
O
PE6
DMR_SLEEP
DMR POWERDOWN(High Active)
6
S
VBAT
VBAT
Connected to VDD
7 O PC13
TX_LED
TX_LED(High
Active)
8
O
PC14
RX_LED
RX LED(High Active)
9 O PC15
LAMP
Keyboard
Lamp(High
Active)
10
S
VSS_5
VSS_5
Connected to VSSA.
11
S
VDD_5
VDD_5
Connected to 3.3V.
12
I
OSC_IN
OSC_IN
8MHz Crystal Input
13
O
OSC_OUT
OSC_OUT
8MHz Crystal Output
14
I
RESET
RESET
Reset Input(Low Active)
15 I PC0/EXTI0
TIME_SLOT_INTE
R
DMR TIME_SLOT Interrupt
16
I
PC1/EXTI1
SYS_INTER
DMR SYS Interrupt
17 I PC2/EXTI2 RF_TX_INTER
DMR RF_TX
中
Interrupt
18 I
PC3/EXTI3/
AD123_IN13
RF_RX_INTER
DMR
RF_RX
Interrupt
19 S
VDD
VDD
Connected to 3.3V
。
20
S
VSS
VSS
Connected to VSSA
21
S
VREF+
VREF+
Connected to 3.3V.
Summary of Contents for BR200D-U1
Page 1: ...BR200D U1 BR300D U1 Service Manual 1 BR200D U1 BR300D U1 Service Manual ...
Page 17: ...BR200D U1 BR300D U1 Service Manual 17 Exploded View of the Parts ...
Page 20: ...BR200D U1 BR300D U1 Service Manual 20 DR7000 2 ...
Page 36: ...BR200D U1 BR300D U1 Service Manual 36 Chapter 6 PCB Layout ...
Page 37: ...MIC1 C5 D4 D5 D8 C4 C3 R1 D2 D3 D6 C7 C8 C9 J1 D1 D9 C2 D7 C6 C13 C1 ...
Page 70: ...BR200D U1 BR300D U1 Service Manual 66 Chapter 10 Block and Schematic ...