參數(shù)資料
型號(hào): DRM058
英文描述: MC68HC908QY4 LIN Backlit Keypad Slave Designer Reference Manual
中文描述: MC68HC908QY4林背光鍵盤(pán)奴隸設(shè)計(jì)參考手冊(cè)
文件頁(yè)數(shù): 32/48頁(yè)
文件大小: 1131K
代理商: DRM058
Keyboard Transmitter Firmware
Designer Reference Manual
DRM050 — Rev 0
32
Keyboard Transmitter Firmware
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
Figure 6-1. Firmware Flow
6.2 Output Buffer Format for Keyboard RF Packet
Figure 6-2
shows the output buffer format for the keyboard RF packet.
It is similar to that of the mouse, except for the last two bytes.
Break/Make byte indicates whether the packet represents a Make key
CONVERT SCAN KEY
NO KEY ACTIVITY
FOR 10 SECOND
INITIALIZATION
YES
SCAN KEY MATRIX
NO
YES
ENTER
POWER SAVING MODE
ANY KEY PRESSED
DETECTED
NO
WAKE UP DEVICE
VALID KEY PRESSED
DETECTED
INIT MAC TO TRANSMIT
THE RF PACKET
YES
NO
IRQ ISR
DETERMINE AND SERVE
THE INTERRUPT EVENT FROM
RFW-D100 BASEBAND CHIP
F
Freescale Semiconductor, Inc.
n
.
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