2/24/2008 9T6WP
BCM7405
Preliminary Hardware Data Module
Hardware Signal Descriptions
06/29/07
Bro a d c o m C o rp o r a ti o n
Page 1-124
Pin Definition Notations
Document
7405-1HDM00-R
1
22 - GPIO
GPIO_109
STI/O
PD
3.3
8
E8
Generic I/O port. Shared
with CODEC_SDI / Ext.
IRQb_11 / UART_CTS_0 /
SPI_M_SCK /
NDS_SC_AUX_0
1
22 - GPIO
GPIO_110
STI/O
PD
3.3
8
D8
Generic I/O port. Shared
with CODEC_SCLK / Ext.
IRQb_12 / UART_RTS_0 /
SPI_M_MOSI /
NDS_SC_AUX_1
1
22 - GPIO
GPIO_111
STI/O
PD
3.3
8
E9
Generic I/O port. Shared
with CODEC_FSYNCb /
Ext. IRQb_13 /
UART_RXD_0 /
SPI_M_MISO /
NDS_SC_VPP
1
22 - GPIO
GPIO_112
STI/O
PD
3.3
8
D9
Generic I/O port. Shared
with CODEC_MCLK / Ext.
IRQb_14 / UART_TXD_0 /
SPI_M_SS0b
1
22 - GPIO
SGPIO_00
STI/OD
Ext PU
5
8
U30
Generic I/O port. Shared
with BSC_M0_SCL
1
22 - GPIO
SGPIO_01
STI/OD
Ext PU
5
8
V31
Generic I/O port. Shared
with BSC_M0_SDA
1
22 - GPIO
SGPIO_02
STI/OD
Ext PU
5
8
B16
Generic I/O port. Shared
with BSC_M1_SCL
1
22 - GPIO
SGPIO_03
STI/OD
Ext PU
5
8
D17
Generic I/O port. Shared
with BSC_M1_SDA
1
22 - GPIO
SGPIO_04
STI/OD
Ext PU
5
8
V33
Generic I/O port. Shared
with BSC_M2_SCL
1
22 - GPIO
SGPIO_05
STI/OD
Ext PU
5
8
V34
Generic I/O port. Shared
with BSC_M2_SDA
1
22 - GPIO
SGPIO_06
STI/OD
Ext PU
5
8
AM12
Generic I/O port. Shared
with BSC_M3_SCL
1
22 - GPIO
SGPIO_07
STI/OD
Ext PU
5
8
AN12
Generic I/O port. Shared
with BSC_M3_SDA
BSC Slave – 2 (device testing)
1
8 - EJTAG/BroadBand
Studio
BSC_S_SCL
STI
Ext PU
5
8
J34
BSC slave interface clock.
Shared with SPI_S_SCK
1
8 - EJTAG/BroadBand
Studio
BSC_S_SDA
STI/OD
Ext PU
5
8
K32
BSC slave interface data.
Shared with SPI_S_MOSI
(Master out/slave in)
Crystal and Clock I/O – 13
1
12 - Clocks
CLK54_XTAL
N
XO
–
2.5
–
E33
54 MHz (3rd harmonic from
18 MHz crystal)
1
12 - Clocks
CLK54_XTAL
P
XI
–
2.5
–
E32
54 MHz (3rd harmonic from
18 MHz crystal)
Table 1-19: Pin Descriptions (Cont.)
# of
Pins
Orcad Schematic
Block
Label
I/O
Res.
Tol.
(V)
Drv.
(mA)
Loc.
Description