NRF9E5 Datasheet, PDF (6/104 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
X000 X001 X010 X011 X100 X101 X110 X111
F8 ^EIP
HWREV
F0
B
E8 ^EIE
E0 ^ACC
D8 ^EICON
D0 ^PSW
C8 ^T2CON
RCAP2L RCAP2H TL2
TH2
C0
B8
IP
CKLF
CON
B0
RSTREA
SPI
SPI
SPI
TICK_
CK_
TEST_
S
_DATA _CTRL CLK
DV
CTRL MODE
A8
IE
PWM
PWM REGX REGX REGX
CON
DUTY _MSB
_LSB _CTRL
A0
P2
98 ^SCON
SBUF
90
P1
EXIF MPAGE P0_DRV P0_DIR P0_ALT P1_DIR P1_ALT
88 ^{TCON TMOD}
TL0
TL1
TH0
TH1 CKCON SPC_FNC
80
P0
SP
DPL0
DPH0
DPL1
DPH1
DPS
PCON
Table 3 SFR Register map.
1.2 PWM
The nRF9E5 has one programmable PWM (Pulse-Width Modulation) output, which is
the alternate function of P0.7. The resolution of the PWM is software programmable to
6, 7 or 8 bits. The frequency of the PWM signal is programmable via a 6 bit prescaler
from the XTAL oscillator. The duty cycle is programmable between 0% and 100% via
one 8-bit register.
1.3 SPI
nRF9E5 features a simple single buffered SPI (Serial Programmable Interface) master.
The 3 data lines of the SPI bus (MISO, SCK and MOSI) are multiplexed (by writing to
register SPI_CTRL) between the GPIO pins (lower 3 bits of P1) and the RF transceiver
and AD subsystems. The SPI hardware does not generate any chip select signal. The
programmer will typically use GPIO bits (from port P0) to act as chip selects for one or
more external SPI devices. The EECSN pin is a general purpose IO dedicated as chip
select for the boot EEPROM. When the SPI interfaces the RF transceiver, the chip
selects are available in an internal GPIO port, P2.
1.4 Port Logic
The device has 8 general-purpose bi-directional pins (the P0 port). Additionally the 4
SPI data pins may be used as general purpose IO (the P1). Most of the GPIO pins can
be used for multiple purposes under program control. The alternate functions include
two external interrupts, UART RXD and TXD, a SPI master port, three enable/count
signals for the timers and the PWM output and a slow programmable timer. Each pin in
the P0 port can be programmed for high sink or source current.
Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone [phone] - Fax [phone]
Revision: 1.1
Page 6 of 104
June 2004