NRF9E5 NORDIC SEMICONDUCTOR, NRF9E5 Datasheet - Page 57

• Manufacturer Part Number: NRF9E5
• Description: TRX, 430-928MHZ, MCU/ADC/PWM, SMD
• Manufacturer: NORDIC SEMICONDUCTOR

Specifications of NRF9E5

• Receiving Current: 12.5mA
• Transmitting Current: 30mA
• Data Rate: 50Kbps
• Frequency Range: 430MHz To 928MHz
• Modulation Type: GFSK
• Rf Ic Case Style: QFN
• No. Of Pins: 32
• Supply Voltage Range: 1.9V To
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PRODUCT SPECIFICATION
nRF9E5 Single Chip Transceiver with Embedded Microcontroller and ADC
16.7 Reset
The nRF9E5 can be reset either by the on-chip power-on reset circuitry or by the on-
chip watchdog counter.
16.7.1 Power-on Reset
The power-on reset circuitry keeps the chip in power-on-reset state until the supply
voltage reaches VDDmin (a voltage, less than 1.9V sufficiently high for digital
operation). At this point the internal voltage generators and oscillators start up, the SFRs
are initialized to their reset values, as listed in Table 62, and thereafter the CPU begins
program execution at the standard reset vector address 0x0000. The startup time from
power-on reset is normally determined by both the crystal oscillator startup time and the
frequency of the low power oscillator (LP_OSC). This total may vary from 1 to 3 ms
depending on processing, temperature and supply voltage.
Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone [phone] - Fax [phone]
Revision: 1.3
Addr
Ctrl
[2:0]
0
1
2
3
4
5
Bits
15:14
13:12
11:10
9:8
7:6
5:4
3:2
1:0
R/W
Ctrl
0
1
0
1
0
1
0
1
0
1
0
1
[3]
WWCON1 function
Edge selection for P07
Edge filter for P07
Edge selection for P06
Edge filter for P06
Edge selection for P05
Edge filter for P05
Edge selection for P04
Edge filter for P04
Table 47 Bit fields in register WWCON1 and WWCON0.
#bit
16
16
16
12
16
16
16
0
9
16
9
16
Table 46 Indirect addresses and functions.
Init
Hex
0000
0000
0000
000
0000
0000
0000
-
000
0000
000
0000
Name
RWD
WWD
RGTIMER
WGTIMER
RRTCLAT
WRTCLAT
RRTC
WRTCDIS
RWSTA0
WWCON0
RWSTA1
WWCON1
Page 57 of 108
WWCON0 unction
Edge selection for P03
Edge filter for P03
Edge selection for P02
Edge filter for P02
Edge selection for P01
Edge filter for P01
Edge selection for P00
Edge filter for P00
Function
Watchdog register (count)
Watchdog register (count)
15-8: MSB part of RTC counter
7-0:
11-8: GTIMER latch
7-0:
Least significant part of RTC latch
Least significant part of RTC latch
RTC counter value
Disable RTC (data not used)
Wakeup status
Bit 8: RTC timer status
7-0: Wakeup status for pins P07-P00
GPIO wakeup configuration for
P03-P00. See Table 47.
Wakeup status (Identical to WSTA0)
GPIO wakeup configuration for
P07-P04. See Table 47.
MSB part of RTC latch
MSB part of RTC latch
June 2006