NRF9E5 Datasheet, PDF (54/104 Pages) List of Unclassifed Manufacturers – 433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4 Input, 10 Bit ADC

PRODUCT SPECIFICATION
nRF9 E5 Single Chip Transceiver with Embedded Microcontroller and ADC
Typical sequences are:
Write: Wait until REGX_CRTL.4 == 0 (i.e. not busy)
Write REGX_MSB, Write REGX_LSB, Write REGX_CTRL
Read: Wait until REGX_CRTL.4 == 0 (i.e. not busy)
Write REGX_CTRL, Wait until REGX_CRTL.4 == 0 (i.e. not busy)
Read REGX_MSB, Read REGX_LSB
Note : Please wait until not busy before accessing SFR 0xB6 CK_CTRL (page 58)
8-bit CPU
register
REGX_CTRL
8-bit CPU
register
REGX_MSB
16-BIT BUS
8-bit CPU
register
REGX_LSB
8+16-BIT
Load _REGISTER
TIMER_LATCH
Clocked on CPU clock
Clocked
on CKLF
TICK
Load _16-BIT
CE _DOWN
COUNTER
Zero
Load _24-BIT
CE _DOWN
COUNTER
Zero
Load _GPIO
WAKEUP ^IO
P1 GPIO
RTC
INT
WAKEUP INT
WATCHDOG_RESET
Figure 16 Block diagram of wakeup and watchdog function.
Table 45 below describe the functions of the SFR registers that control these blocks, and
Table 46 and Table 47 explains the contents of the individual control registers for
watchdog and wakeup functions.
Addr
SFR
(hex)
AB
AC
AD
R/W #bit Init
Hex
Name
Function
R/W 8
R/W 8
R/W 5
00 REGX_MSB Most significant part of 16 bit register for
interface to Watchdog, RTC timer and GPIO
wakeup
00 REGX_LSB
Least significant part of 16 bit register for
interface to Watchdog, RTC timer and GPIO
wakeup
00 REGX_CTRL Control for 16 bit register for transfers to and
from Watchdog, RTC timer and GPIO wakeup.
4: REGX interface busy (read only).
3: Read (0) / Write (1)
2-0: Indirect address, see leftmost column in
Table 46
Table 45 Wakeup, RTC timer and Watchdog SFR-registers.
Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone [phone] - Fax [phone]
Revision: 1.1
Page 54 of 104
June 2004