BCM4319XKUBGT Datasheet, PDF (52/84 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
Signal Descriptions
Table 6: 138-Ball WLBGA Signal Descriptions (Cont.)
Ball
Signal Name
Type Description
USB 2.0 Interface
WN1
USB20_DEV_DPLS
I/O USB port data plus
WP1
USB20_DEV_DMNS
I/O USB port data minus
WM1
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
USB20PHY_MONCDR_PAD I/O USB CDR monitor (reserved for testing)
WN3
USB_MONPLL
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
BTCX_FREQ
I Indicates that the coexistent BT is about to transmit on a
restricted channel: internal pull-down.
WK3
BTCX_RF_ACTIVE
I Indicates that the coexistent BT is active: internal pull-
down.
WL3
BTCX_STATUS
I Indicates the coexistent BT priority status and RX/TX
direction.
WP3
BTCX_TXCONF
O Output permission for the coexistent BT to transmit.
JTAG Interface (IO supply = VDDIO_RF) (for testing only)
WH6
WK1
WH5
WJ3
TMS
TDO
TDI
TCK
I For normal operation, connect as described in the JTAG
O ^{specification (IEEE Std 1149.1). Otherwise, if JTAG is not}
used, these pins can be left unconnected (NC) as they
I _{have internal pull-up resistors (approximately 60K ohms).}
I
WJ4
JTAG_TRST_L
I
GPIO Interface (IO supply = VDDIO, Programmable Pulls)
WK8
GPIO_0
I/O General-purpose interface pins.
WH10 GPIO_1
I/O
WK9
GPIO_2
I/O
WJ9
GPIO_3
I/O
WK10 GPIO_6
I/O
WJ10 GPIO_7
I/O
WM4
GPIO_8
I/O
WF11 GPIO_9
I/O
Broadcom^®
April 2, 2014 • 4319-DS05-R
Single-Chip IEEE 802.11™ a/b/g/n MAC/Baseband/Radio
Page 51