Cpu Pins - HYT TC-580 Service Manual

CPU Pins

Pin
Port
No.
1 PE2
2 PE3
3 PE4
4 PE5
5 PE6
6 VABT
7 PC13-ANTI_TAMP
8 PC14-OSC32_IN
9 PC15-OSC32_OUT
10 VSS_5
11 VDD_5
12 OSC_IN
13 OSC_OUT
14 NRST
15 PC0/ADC_IN10
16 PC1/ADC_IN11
17 PC2/ADC_IN12
18 PC3/ADC_IN13
19 VSSA
20 VREF-
21 VREF+
22 VDDA
PA0_WKUP/USART
23 2_CTS/ADC_IN0/TI
M2_CH1_ETR
PA1/USART2_RTS/
24
ADC_IN1/TIM2_CH2
PA2/USART2_TX/A
25
DC_IN2/TIM2_CH3
PA3/USART2_RX/A
26
DC_IN3/TIM2_CH4
27 VSS_4
28 VDD_4
Pin Name I/O
LCD_BLT O
Reserved O
EXT_PTT I
VSAVE_CTR
O
L
TX_CTRL O
Reserved O
Reserved O
Reserved O
OSC_IN I
OSC_OUT O
RESET I
RSSI_DET AD
Reserved O
VOX_DET AD
CTC_DCS_IN AD
P
CTC_DCS_V
W
CO
M
P
CTC_DCS_P
W
LL
M
P
BEEP_OUT W
M
P
DTMFO/TTS
W
O/MSKO
M
21
TC-580 Service Manual
Function
Controls the LCD backlight.
H: On.
Reserved
PTT key on the earpiece (valid at high level)
Controls the power in Battery Save mode.
H: On; L: Off.
Controls the TX power.
H: On; L: Off.
Provides a power-off protection interface
(temporarily not valid); however, a 100nF ceramic
capacitor is required to be connected to VDD.
Reserved
Reserved
Reserved
GND
VCC
For 9.8304MHz main crystal oscillator
Green LED
Reset pin (valid at low level)
Detects signal strength.
Reserved
Provides VOX detection (to detect voice signals)
Inputs CTCSS/CDCSS
Analog ground
Must be connected to VSSA.
ADC reference voltage
VDDA
Outputs CTCSS/CDCSS to VCO.
Outputs CTCSS/CDCSS to PLL.
Outputs audio signals of BEEP.
Outputs DTMF, 2-TONE, MSK and Emergency
tone.
GND
VCC