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chart 2--- CPU pin Port definition:
Pin
Type
Name
PA0/
23
I
ADC123_IN0
PA1/
24
I
ADC123_IN1
PA2/
25
I
ADC123_IN2
PA3/
26
I
ADC123_IN3
PA4/
29
O
DAC_OUT1
PA5/
30
O
DAC_OUT2
PA6/
31
I
ADC12_IN6
32
O
PA7
67
O
PA8
PA9/
68
I/O
USART1_TX
PA10/
69
I
USART1_RX
70
I/O
PA11/USBDM
71
I/O
PA12/USBDP
JTMS-SWDIO/
72
I/O
PA13
JTCK-SWCLK/
76
I/O
PA14
PA15/
77
O
I2S3_WS
PB0/
35
I
ADC12_IN8
PB1/
36
I
ADC12_IN9
37
I/O
PB2/BOOT1
PB3/
89
O
SPI3_SCK
Pin definition
MANDOWN
BATT
QT/DQT_IN
VOX
APC/TV
MOD2_BIAS
POWER_DET
POWER_C
SAVE
串口TXD/
SELC
串口RXD/
EXT_PTT
USBD-
USBD+
SWDIO/
WORN_SW
SWCLK/
MANDOWN_SW
I2S_FS
RSSI
BUSY
BOOT1/
FM_SW
V_SCLK
Explain
(Reserved) MANDOWN input;
Battery voltage detection; the maximum input
voltage of 2.8v.
QT/DQT input
VOX detection input
Transmit power control and receive tuned
D / A outputs
Controls the TCXO reference frequency D /
A output
Power switch input, high level indicates
that the power is turned on.
Power on control; active high.
5C power supply power control; active high.
Reserved Bootloader TX; Alternate external access control
input, then the first part of the external accessories.
Reserved Bootloader RX; multiplexed external PTT input,
external accessory pin 9.
USB data cable DM, then the external
accessories 5 feet.
USB data cable DP, access to external accessories 4
feet.
Reserved JTAG interface; multiplexed with external accessories
pin 2. Reserved wide and narrowband to receive volume switching,
high level for broadband.
Reserved JTAG interface; multiplexed access to external
accessories 12 feet. Reserved MANDOWN power switch, active
Connect to HR_C5000 pin 37 I2S_FS
RSSI detection input
BUSY detection
The default 10K resistor is grounded. Used as output port,
the default working state is 0, reduce power consumption.
Multiplexed for FM reception IF channel switch control;
active high.
Connect the HR_C5000 to the 43rd pin V_SCLK
high.
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