参数资料
型号: I5104XY
厂商: WINBOND ELECTRONICS CORP
元件分类: 音频合成
英文描述: 262.2 SEC, SPEECH SYNTHESIZER WITH RCDG, UUC25
封装: DIE-25
文件页数: 29/87页
文件大小: 616K
代理商: I5104XY
36
8393B-MCU Wireless-02/13
ATmega256/128/64RFR2
pin functionality, known from the Atmel standalone transceiver devices (two chip
solution).
The register (TRXRST) can be used to reset the transceiver without resetting the
controller. After the reset bit was set, it is cleared immediately.
A second configuration bit (SLPTR) is used to control frame transmission or sleep and
wakeup of the transceiver. This bit is not cleared automatically.
The function of the SLPTR bit relates to the current state of the transceiver module and
is summarized in Table 9-1 below. The radio transceiver states are explained in detail in
Table 9-1. SLPTR Multi-functional Configuration bit
Transceiver Status
Function
SLPTR Bit
Description
PLL_ON
TX start
“0”
“1”
Starts frame transmission
TX_ARET_ON
TX start
“0”
“1”
Starts TX_ARET transaction
TRX_OFF
Sleep
“0”
“1”
Takes the radio transceiver into SLEEP state
SLEEP
Wakeup
“1”
“0”
Takes the radio transceiver back into TRX_OFF state;
In states PLL_ON and TX_ARET_ON, bit SLPTR is used to initiate a TX transaction.
Here bit SLPTR is sensitive on the transition from “0” to “1” only. The bit should be
cleared before the frame transmission is finished.
After initiating a state change by a “0” to “1” transition at bit SLPTR in radio transceiver
states TRX_OFF, RX_ON or RX_AACK_ON, the radio transceiver remains in the new
state as long as the bit is logical “1” and returns to the preceding state if the bit is set to
“0”.
SLEEP state
The SLEEP state is used when radio transceiver functionality is not required, and thus
the receiver module can be powered down to reduce the overall power consumption.
When the radio transceiver is in TRX_OFF state the microcontroller forces the
transceiver to SLEEP by setting SLPTR = “1”. The transceiver awakes when the
microcontroller releases bit SLPTR.
9.3.2 Interrupt Logic
9.3.2.1 Overview
The transceiver module differentiates between eight interrupt events. Internally all
pending interrupts are stored in a separate bit of the interrupt status register
(IRQ_STATUS). Each interrupt is enabled by setting the corresponding bit in the
interrupt mask register (IRQ_MASK). If an IRQ is enabled an interrupt service routine
must be defined to handle the IRQ. A pending IRQ is cleared automatically if an
Interrupt service routine is called. It is also possible to handle IRQs manually by polling
the IRQ_STATUS register. If an IRQ occurred, the appropriate IRQ_STATUS register
bit is set. The IRQ can be cleared by writing ‘1’ to the register bit. It is recommended to
clear the corresponding status bit before enabling an interrupt.
More information about interrupt handling by the controller can be found in section
The supported interrupts for the Basic Operating Mode are summarized in Table 9-2 on
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