Ic Data - Yamaha YDS-12 Service Manual

■ IC DATA

IC5: R5F21284SNSP (MAIN P.C.B.)
Microprocessor
Pin No. Port Name
1 P3_5
2 TXD1
3 /RESET
4 XOUT
5 VSS
6 XIN
7 VCC
8 MODE
9 RXD1
10 P1_7
11 CLK0
12 RXD0
13 TXD0
14 P1_3
15 P1_2
16 VREF
17 P1_1
18 P1_0
19 P3_3
20 P3_4
1
P3_5
TXD1 2
3
/RESET
XOUT 4
5
VSS
R5F21284SNSP
XIN 6
7
VCC
MODE 8
9
RXD1
P1_7 10
Function Name I/O
FET_CTRL O
TXD1 O
/RESET I
XOUT O
VSS I
XIN I
VCC I
MODE I
RXD1 I
DOCK_ID I
CLK0 O
RXD0 I
TXD0 O
CP_NRESET O
ACCPWR_OUT O
VREF I
IPOD_DET_IN I
ACCPWR_IN I
SW_SEL_B O
SW_SEL_A O
20
P3_4
19 P3_3
18
P1_0
17 P1_1
IC5
16
VREF
15 P1_2
14
P1_3
13 TXD0
12
RXD0
11 CLK0
Detail of Function
FET control output
RS232C transmit data output
Reset input
XOUT clock output
GND
XIN clock input
Power supply input
H : Normal mode, L : Flash rewrite mode
RS232C receive data input
Dock_ID input (YDS-12/YDS-11)
SPI_CLK
SPI_SOMI
SPI_SIMO
Reset for authentication coprocessor
Accessory_power output to receiver
Reference voltage input
iPod_detect input
Accessory_power input from iPod
RS232C SW select B
RS232C SW select A
YDS-12
7