BCM4319 Preliminary Data Sheet
Signal Descriptions
Table 6: 138-Ball WLBGA Signal Descriptions (Cont.)
Ball
Signal Name
Type Description
USB 2.0 Interface
WN1
WP1
WM1
USB20_DEV_DPLS
I/O USB port data plus
I/O USB port data minus
USB20_DEV_DMNS
USB20PHY_RREF_PAD
I/O USB PHY bandgap reference resistor. Connect to ground
via a 4.02k resistor in parallel with a 100 pF capacitor.
WM3
WN3
USB20PHY_MONCDR_PAD
USB_MONPLL
I/O USB CDR monitor (reserved for testing)
I/O USB PHY PLL monitor (reserved for testing)
UART Interface (IO supply = VDDIO)
WP4
UART_RX
I
Serial Output for UART. Connect to RS-232 DTE for
exchanging data with other serial devices. This signal has
an internal pull-up resistor (approximately 60K ohms) and
can be left unconnected (NC) if not used.
WN4
UART_TX
O
Serial Input for UART. Connect to RS-232 DTE for
exchanging data with other serial devices. If not used, it
may be left unconnected.
External Coexistence Interface (IO supply = VDDIO)
WL4
WK3
WL3
WP3
BTCX_FREQ
I
Indicates that the coexistent BT is about to transmit on a
restricted channel: internal pull-down.
BTCX_RF_ACTIVE
BTCX_STATUS
BTCX_TXCONF
I
Indicates that the coexistent BT is active: internal pull-
down.
I
Indicates the coexistent BT priority status and RX/TX
direction.
O
Output permission for the coexistent BT to transmit.
JTAG Interface (IO supply = VDDIO_RF) (for testing only)
WH6
WK1
WH5
WJ3
WJ4
TMS
I
O
I
For normal operation, connect as described in the JTAG
specification (IEEE Std 1149.1). Otherwise, if JTAG is not
used, these pins can be left unconnected (NC) as they
have internal pull-up resistors (approximately 60K ohms).
TDO
TDI
TCK
I
JTAG_TRST_L
I
GPIO Interface (IO supply = VDDIO, Programmable Pulls)
WK8
GPIO_0
GPIO_1
GPIO_2
GPIO_3
GPIO_6
GPIO_7
GPIO_8
GPIO_9
I/O General-purpose interface pins.
WH10
WK9
I/O
I/O
I/O
I/O
I/O
I/O
I/O
WJ9
WK10
WJ10
WM4
WF11
Broadcom®
Single-Chip IEEE 802.11™ a/b/g/n MAC/Baseband/Radio
Page 51
April 2, 2014 • 4319-DS05-R
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