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3. TECHNICAL BRIEF
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3.2.5. USART Interface
KE820/KG99 have two UART Drivers as follow :
- USART1 : Hardware Flow Control / SW upgrade / Calibration
- USART2 : SW debug trace.
Table 3 USART Interface Spec.
3.2.6. ADC channel
BBP ADC block is composed of 7 external ADC channel. This block operates charging process and
other related process by reading battery voltage and other analog values.
Table 4 S-Gold2 ADC channel usage
USART_0(USART1)
Resource
Name
Remark
USART0_TXD
TXD_0
Transmit Data
USART0_RXD
RXD_0
Receive Data
USART0_CTS
CTS_0
Clear To Send
USART0_RTS
RTS_0
Request To Send
DSR
N.C.
USART_1(USART2)
USART1_TXD
TX_DEBUG
Trace data tx
USART1_RXD
RX_DEBUG
Trace data rx
USART1_CTS N.C.
N.C.
USART1_RTS N.C.
N.C.
ADC channel
Resource
Interconnection
Description
M0
BATT_TEMP
Battery temperature measure
M1
RF_TEMP
RF block temperature measure
M2
JACK_TYPE
Accessory type detect
M7
H/W VERSION
S-Gold2 H/W version detect
M8
VSUPPLY
Battery supply voltage measure
M9
I_MONITOR
Current consumption measure
M10
REMOTE_ADC
Remote control key detect
Summary of Contents for KE820
Page 1: ...Service Manual Model KE820 Service Manual KE820 Date August 2006 Issue 1 0 ...
Page 3: ... 4 ...
Page 5: ... 6 ...
Page 46: ...3 TECHNICAL BRIEF 47 Figure 18 EN SET port control method ...
Page 69: ...4 PCB layout 70 Figure 45 Main PCB bottom Figure 46 Main PCB bottom placement ...
Page 70: ...4 PCB layout 71 Figure 47 Sub PCB top Figure 48 Sub PCB top placement ...
Page 71: ...4 PCB layout 72 Figure 49 Sub PCB bottom Figure 50 Sub PCB bottom placement ...
Page 114: ...6 Download S W upgrade 115 6 2 Download program user guide ...
Page 115: ... 116 6 Download S W upgrade ...
Page 116: ... 117 6 Download S W upgrade ...
Page 117: ... 118 6 Download S W upgrade ...
Page 124: ... 125 8 PCB LAYOUT ...
Page 125: ... 126 8 PCB LAYOUT ...
Page 126: ... 127 8 PCB LAYOUT ...
Page 127: ... 128 8 PCB LAYOUT ...
Page 141: ... 142 ...
Page 161: ...Note ...
Page 162: ...Note ...