CSR8615A04-IQQF-R View Datasheet(PDF) - Unspecified
Part Name
Description
MFG CO.
'CSR8615A04-IQQF-R' PDF : 114 Pages View PDF
Note:
The internal regulators described in Section 10.1 to Section 10.7 are not recommended for external circuitry
other than that shown in .
For information about power sequencing of external regulators to supply the CSR8615 QFN contact CSR.
10.10 Reset, RST#
CSR8615 QFN is reset from several sources:
â– RST# pin
13 â– Power-on reset
, 20 â– USB charger attach reset
16 â– Software configured watchdog timer
ber The RST# pin is an active low reset and is internally filtered using the internal low frequency clock oscillator. CSR
m recommends applying RST# for a period >5ms.
epte At reset the digital I/O pins are set to inputs for bidirectional pins and outputs are set to tristate.
y, S 10.10.1 Digital Pin States on Reset
onda Table 10.2 shows the pin states of CSR8615 QFN on reset.
n - M Pin Name
om.c USB_DP
mm.c USB_DN
heco PIO[0]
apac PIO[1]
ao - PIO[2]
es Ts PIO[3]
r jam PIO[4]
ed fo PIO[5]
Prepar PIO[6]
I/O Type
Digital bidirectional
Digital bidirectional
Digital bidirectional
Digital bidirectional
Digital bidirectional
Digital bidirectional
Digital bidirectional
Digital bidirectional
Digital bidirectional
Full Chip Reset Pin Name
N/A
PIO[10]
N/A
PIO[11]
PUS
PIO[12]
PUS
PIO[13]
PDW
PIO[14]
PDW
PIO[15]
PDW
PIO[16]
PDW
PIO[17]
PDS
PIO[18]
I/O Type
Digital bidirectional
Digital bidirectional
Digital bidirectional
Digital bidirectional
Digital bidirectional
Digital bidirectional
Digital bidirectional
Digital bidirectional
Digital bidirectional
Full Chip Reset
PDS
PDS
PUS
PDS
PUS
PUS
PUS
PDS
PDW
PIO[7]
Digital bidirectional
PDS
PIO[19]
Digital bidirectional
PDW
PIO[8]
Digital bidirectional
PUS
PIO[20]
Digital bidirectional
PDW
PIO[9]
Digital bidirectional
PDS
PIO[21]
Digital bidirectional
PDW
Table 10.2: Pin States on Reset
Pre-production Information
© Cambridge Silicon Radio Limited 2013
Confidential Information - This Material is Subject to CSR's Non-disclosure Agreement
Page 68 of 114
CS-303726-DSP3
www.csr.com
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