ht82k75rew Holtek Semiconductor Inc., ht82k75rew Datasheet - Page 64

• Manufacturer Part Number: ht82k75rew
• Description: Ht82m75rew/ht82k75rew 2.4ghz Transceiver 8-bit Otp Mcu
• Manufacturer: Holtek Semiconductor Inc.

Primary RF Transceiver TX Operation
Users activate the primary TX mode by setting SREG0x0D [2] to 1. After changing the SREG0x0D [2] value, users
have to reset the RF and let RF state machine go to primary TX mode correctly. If primary TX mode is enabled, the RF
Transceiver will enter power waving mode after ant packet transmits. If primary TX mode is not enabled, the RF Trans-
ceiver will switch to RX mode after any packet transmits. If ACK response is needed and primary TX mode is enabled,
the RF Transceiver will enter the Power Saving Mode after ACK frame received. If no ACK frame received, the RF
Transceiver will not enter the Power Saving Mode until the max time to wait for an acknowledgement frame by setting
SREG0x12 [6:0].
Registers associated with Power Saving Operation:
RF Transceiver Battery Monitor Operation
The RF Transceiver has Battery Monitor function and the procedure to enable the Battery Monitor function is described
as below.
Registers associated with Power Saving Operation:
RF Transceiver Register Definitions
The Memory of the RF Transceiver is categorized into two kinds of addressing mode, known as Short Addressing Reg-
isters and Long Addressing Registers. Each of the Register definition is described in the following sections.
Legends of RF Transceiver Register Types
Rev. 1.00
R/W
WT
RC
R
R/W1C
Set the battery monitor threshold value at LREG0x205 [7:4].
Enable the battery monitor by setting the LREG0x206 [3] to the value 1.
Read the battery-low indicator at SREG0x34 [5]. If this bit is set, it means that the supply voltage is lower than the bat-
tery monitor threshold specified by LREG0x205 [7:4].
0x205
0x206
Addr.
Addr.
0x0D
0x12
0x34
Register Type
File Name
File Name
RXFLUSH
RFCTRL5
RFCTRL6
BATRXF
ACKTO
Read/Write register
Write 1 to trigger register, automatically cleared by hardware
Read to clear register
Read-only register
Read/Write 1 to clear register
TXFBW1
BATTH3
Bit 7
Bit 7
r
r
r
MATOP6
TXFBW0
BATTH2
Bit 6
Bit 6
r
r
32MXCO1 32MXCO0
MATOP5
BATTH1
BATIND
Bit 5
Bit 5
r
MATOP4
BATTH0
Bit 4
Bit 4
64
r
r
Description
MATOP3
BATEN
Bit 3
Bit 3
r
r
r
HT82M75REW/HT82K75REW
MATOP2
Bit 2
Bit 2
PTX
r
r
r
MATOP1
RDFF1
Bit 1
Bit 1
r
r
r
RXFLUSH 0110 0000
MATOP0
RXFIFO2
Bit 0
Bit 0
r
r
June 11, 2010
0011 1001
0000 0000
0000 0000
1111 0000
Value on
Value on
POR
POR