XE8806A SEMTECH [Semtech Corporation], XE8806A Datasheet - Page 72

• Manufacturer Part Number: XE8806A
• Description: Ultra Low-Power Low-Voltage
• Manufacturer: SEMTECH [Semtech Corporation]

Note: Depending on the status of the EnResPConf bit in RegSysCtrl, the reset conditions of the registers are
different. See the reset block documentation for more details on the nresetpconf signal.
12.4 Port B capabilities
© Semtech 2006
pos.
pos.
pos.
pos.
pos.
7 – 0
7 – 0
pos.
7 – 0
7 – 0
7 – 0
7 –0
PBOut[7-0]
PBDir [7-0]
PBIn[7-0]
PBOpen[7-0]
PBPullup[7]
PBAna [7-0]
RegPBPullup
RegPBOpen
RegPBOut
RegPBAna
RegPBDir
RegPBIn
Port B
name
PB[7]
PB[6]
PB[5]
PB[4]
PB[3]
PB[2]
PB[1]
PB[0]
r w
r w
r w
r w
r w
r w
rw
rw
rw
rw
rw
rw
(analog)
analog
analog
analog
analog
analog
analog
analog
analog
high
0 nresetpconf
X
0 nresetpconf
0 nresetpconf
1 nresetpconf
0 nresetpconf
reset
reset
reset
reset
reset
reset
Table 12-8: Different Port B functions
PWM1 Counter C (C+D)
PWM0 Counter A (A+B)
Table 12-6: RegPBPullup
Table 12-5: RegPBOpen
Pad PB[7-0] output value
Pad PB[7-0] input status
Pad PB[7-0] direction (0=input)
Pad PB[7-0] open drain (1 = open
drain)
Pull-up for pad PB[7-0] (1=active)
Set PB[7-0] in analog mode
Table 12-7: RegPBAna
Table 12-2: RegPBOut
Table 12-4: RegPBDir
description in digital mode
description in digital mode
description in digital mode
description in digital mode
description in digital mode
description in digital mode
(functions)
Table 12-3: RegPBIn
clock CPU
medium
uart Rx
usrt S1
usrt S0
uart Tx
16 kHz
utilization (priority)
12-3
(digital) (default)
I/O (with pull-up)
I/O (with pull-up)
I/O (with pull-up)
I/O (with pull-up)
I/O (with pull-up)
I/O (with pull-up)
I/O (with pull-up)
I/O (with pull-up)
Set PB[7-0] in analog mode
Analog bus selection for pad PB[7-0]
Unused
Analog bus selection for pad PB[7-0]
Unused
Connect pad PB[7-0] on selected ana
bus
description in analog mode
description in analog mode
description in analog mode
description in analog mode
description in analog mode
description in analog mode
XE8806A/XE8807A
low
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