BCM4319XKUBGT Datasheet, PDF (55/84 Pages) Cypress Semiconductor – Single-Chip IEEE 802.11™ a/b/g/n MAC/Baseband/ Radio with Integrated SDIO and USB Interfaces

BCM4319 Preliminary Data Sheet
SDIO Pin Descriptions
Table 6: 138-Ball WLBGA Signal Descriptions (Cont.)
Ball
Signal Name
Type
WD8
WRF_GNDA_1P2
–
WD9
WRF_GNDPFDCP_1P2
–
WE2
WRF_GNDPAG_3P3
–
WE5
WRF_GNDLO_1P2
–
WE7
WRF_GNDVCO_1P2
–
WG1
WRF_AFE_PAD_AVSS_RXA –
DC
WG4
WRF_BBPLL_GND_1P2
–
WL5
BT_REG_ON
–
WP2
USB20PHY_AGND_PAD
–
WN2
USB20PHY_GNDPLL_PAD
–
No Connect
WE4
WRF_GPIO_OUT2
O
WF1
WRF_AFE_PAD_TEST_IP
I
WF2
WRF_AFE_PAD_TEST_IN
I
WF3
WRF_AFE_PAD_IQADC_VR O
EF
WF4
WRF_GPIO_OUT1
O
WF9
WRF_EXTREFIN
I
WH1
WRF_AFE_PAD_TEST_OP
O
WH2
WRF_AFE_PAD_TEST_ON
O
Description
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
No connect
No connect
No connect
No connect
No connect
No connect
No connect
No connect
SDIO Pin Descriptions
Table 7: SDIO Pin Descriptions
SD 4-Bit Mode
SDIO_DATA_0 Data line 0
SDIO_DATA_1 Data line 1 or interrupt
SDIO_DATA_2 Data line 2 or read wait
SDIO_DATA_3 Data line 3
SDIO_CLK
Clock
SDIO_CMD
Command line
SD 1-Bit Mode
DATA Data line
IRQ Interrupt
RW Read wait
N/C Not used
CLK Clock
CMD Command line
gSPI Mode
DO Data output
IRQ Interrupt
NC Not used
CS Card select
SCLK Clock
DI
Data input
Broadcom^®
April 2, 2014 • 4319-DS05-R
Single-Chip IEEE 802.11™ a/b/g/n MAC/Baseband/Radio
Page 54