JVC KD-R491 Schematic Diagrams page 28

Pin No. Pin Name
72 SPBSSL
73 SPBIO0
74 SPBIO1
75 SPBIO2
76 Vss
77 SPBIO3
78 Vcc
79 MD_CLK
80 MD_BOOT
81 DRV_MUTE
81 DEBUG_2C
82 PVcc
83 NC
84 Vss
85 MUTE
86 Vcc
87 NC
88 PON_DCDC6V
89 LCD_DATA_LCD
90 DAB_REQ_DAB
90 NC
91 EVOL_SCL
91 EP_SCL
91 TU_SCL
92 EVOL_SDA
92 EP_SDA
92 TU_SDA
93 IPOD_SCL
93 NC
94 IPOD_SDA
94 NC
95 REG_SCL
96 REG_SDA
97 CD_DSP_SW
98 DIM_IN
98 NC
99 REG_FLG
100 Vss
101 PVcc
102 MLD
103 BCLK
104 LRCK
105 CD_SRDATA_CD
106 CD_SRDATA_SYS
107 Vss
108 MCLK
I/O Application
O FLASH SPI Multi I/O Bus Slave Select Output
I/O FLASH SPI Multi I/O Bus I/O Data 0
I/O FLASH SPI Multi I/O Bus I/O Data 1
I/O FLASH SPI Multi I/O Bus I/O Data 2
- GND
I/O FLASH SPI Multi I/O Bus I/O Data 3
- Power supply
I Clock Mode Set (Power ON Reset)
EXTAL Pin Input Clock Ranges from 10 to 12 MHz
I BOOT Mode Set
O Motor Driver Control
O For Debug
- Power supply for I/O circuits
O No Use
- GND
O Muting Output for Evol & Line Out
- Power supply
O No Use (for non BT model)
O Enable Output for DC-DC Regulator
I LCD DATA Intput (for LCD Model)
I Command Request from DAB micon to main micon
O No Use (for non DAB model)
I/O I2C Clock 391kHz for E-Vol
I/O I2C Clock 391kHz for E2PROM
I/O I2C Clock 391kHz for Tuner
I/O I2C Data for E-Vol
I/O I2C Data for E2PROM
I/O I2C Data for Tuner
O iPod Authentication IC I2C Clock
O No Use (For non-iPod Model)
O iPod Authentication IC I2C Data
O No Use (For non-iPod Model)
O I2C Clock for Regulator IC
O I2C Data for Regulator IC
O CD DSP Switch
I Dimmer Control Input (for JVC Model)
O No Use (For KWD Model)
I Power Detection
- GND
- Power supply for I/O circuits
O Microcontroller Command Load Signal
I Servo DSP Data Bit Clock
I Servo DSP Data Word Clock
I Servo DSP Data Input
O Servo DSP Data Output
- GND
O Microcontroller Command Clock Signal
(No.MA665<Rev.001>)9/33
Processing/Operation/Descrip-
tion
L: Boot mode 0 / H: Boot mode 1
L: Mute ON / H: Mute OFF
Refer to respective spec
Clock speed 23kHz
L: Other sources / H: CD USB SD
source
L: Dimmer Detect ON / H: Dimmer
Detect OFF
keep L output setting
L: Detect OFF / H: Detect ON