Sharp TQ-GX30E Service Manual page 134

GX30
IC502 VHIBU7870KN-1L (BU7870KN): USB CONTROLLER
Pin No. Terminal name
1 MODESEL1
2 MODESEL2
3 UART_RXD
4 UART_TXD
5 CPUVDD
6 UART_RTS
7 BSYNC
8 UART_CTS
9 BDATA
10 BCNT
11 MODESEL3
12 TXANAOUT
13 RXANAIN
14 GND1
15 RXANAOUT
16 TXANAIN
17* NC
18 BDATA/CTS
19 BSYNC/RTS
20 USBD-/TXD
21 GND2
22 USBD+/RXD
23 CPU_USB_D+
24 CPU_USB_D-
25 REG33
26 PU15
27 PUEA
28 GND3
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Downloaded from www.Manualslib.com
Input/Output
Input
Input
Output
Input
–
Input
Input
Output
Input
Input
Input
Output
Input
–
Output
Input
–
Input/Output
Output
Input/Output
–
Input/Output
Input/Output
Input/Output
–
Output
Input
–
21 20
MODE 0,2,3: OFF
MODE 1,5: ON
USBD+/RXD 22
CPU_USB_D+ 23
CPU_USB_D- 24
REG33 25
CPUVDD
PU15 26
H: ON
L: OFF
PUEA 27
GND3 28
DEC
1
manuals search engine
CONFIDENTIAL
Operation mode switching 1
Operation mode switching 2
UART_RXD output
UART_TXD input
Digital power supply
UART_RTS input
BSYNC input
UART_CTS output
BDATA input
BDATA input control
Operation mode switching 3
Hands free sending external output
Hands free receiving external input
Ground
Hands free receiving output
Hands free sending input
Not used
BDATA/CTS switching external input/output
BSYNC/RTS switching external output
USBD-/TXD switching external input/output
Ground
USBD+/RXD switching external input/output
CPU_USB_D+ input/output
CPU_USB_D- input/output
Power supply voltage for USB
PMOS open drain output
PU15 control input
Ground
19 18 17
MODE 0,1,2: ON
MODE 3,5: OFF
MODE 0,2,3,5: OFF
MODE 1: ON
CPUVDD
CPUVDD
2 3 4 5
6 – 14
Description of terminal
16 15
MODE 0,1,2: ON
MODE 3,5: OFF
14 GND1
13 RXANAIN
MODE 0,1,2: OFF
MODE 3,5: ON
12 TXANAOUT
CPUVDD
MODE 0,2,3,5: L
MODE 1: H
MODESEL3
11
10 BCNT
9 BDATA
8 UART_CTS
6 7