BCM89359 Advance Data Sheet
Signal Descriptions
Table 18: BCM89359 WLBGA Signal Descriptions (Cont.)
Signal Name Type Description
Ball
Bluetooth SLIMbus
J4
J5
BT_SLIMBUS_CK
BT_SLIMBUS_DT
I/O
I/O
MIPI SLIMbus clock.
MIPI SLIMbus data.
Bluetooth GPIO
L6
L5
K1
L2
BT_GPIO_2
I/O
I/O
I/O
I/O
Bluetooth general-purpose I/O.
BT_GPIO_3
BT_GPIO_4
BT_GPIO_5
Miscellaneous
E4
WL_REG_ON
I
Used by PMU to power up or power down the
internal BCM89359 regulators used by the WLAN
section. Also, when deasserted, this pin holds the
WLAN section in reset. This pin has an internal
200 kΩ pull-down resistor that is enabled by
default. It can be disabled through programming.
F3
BT_REG_ON
I
Used by PMU to power up or power down the
internal BCM89359 regulators used by the
Bluetooth section. Also, when deasserted, this pin
holds the Bluetooth section in reset. This pin has
an internal 200 kΩ pull-down resistor that is
enabled by default. It can be disabled through
programming.
P4
N4
BT_DEV_WAKE
BT_HOST_WAKE
I/O
I/O
Bluetooth DEV_WAKE.
Bluetooth HOST_WAKE.
Integrated Voltage Regulators
B1
A2
SR_VDDBAT5V
SR_VLX
I
Power VBAT.
O
CBUCK switching regulator output. Refer to
Table 39 on page 118 for details of the inductor
and capacitor required on this output.
C1
F1
U7
T6
T7
D2
C2
D1
E2
G1
LDO_VDD1P5
I
LNLDO input.
LDO_VDDBAT5V
I
LDO VBAT.
WRF_XTAL_VDD1P2_CORE0
WRF_XTAL_VDD1P35_CORE0
WRF_XTAL_VDD1P35_CORE1
VOUT_LNLDO
O
I
XTAL LDO CORE0 output (1.2V).
XTAL LDO CORE0 input (1.35V).
XTAL LDO CORE1 input (1.35V).
Output of LNLDO.
I
O
O
O
O
O
VOUT_CLDO
Output of core LDO.
VOUT_BTLDO2P5
VOUT_3P3
Output of BT LDO.
LDO 3.3V output.
VOUT_PA3P3
Voltage sense pin for PA LDO 3.3V output.
Bluetooth Supplies
N1
BT_PAVDD2P5
PWR Bluetooth PA power supply.
Broadcom®
September 9, 2014 • 89359-DS100-R
Page 80
BROADCOM CONFIDENTIAL
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