參數(shù)資料
型號: M30218MFCFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP100
封裝: PLASTIC, QFP-100
文件頁數(shù): 125/161頁
文件大小: 2043K
代理商: M30218MFCFP
Under
development
Tentative Specifications REV.A
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30218 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
66
FLD controller
Figure KA-12B. Timing using FLD blanking interrupt
Tdisp
Tscan
Tn
Tn-1 Tn-2
T4
T3
T2
T1
Tn
Tn-1 Tn-2
Segment setting by software
FLD blanking interrupt generated at the
falling of edge of the last digit
FLD digit output
Repeat synchronous
The FLD blanking interrupt is generated when the FLD data pointer (address 035816) reaches “FF16”. The FLD automatic
display output is turned off for a duration of 1 x Tdisp, 2 x Tdisp, or 3 x Tdisp depending on post-interrupt settings. During
this time, key scanning that makes use of FLD segments can be achieved.
When a key-scan is performed with the segment during key-scan blanking period Tscan, take the following sequence:
1. Write “0” to bit 0 of the FLDC mode register (address 035016).
2. Set the port corresponding to the segment for key-scan to the output port.
3. Perform the key-scan.
4. After the key-scan is performed, write “1” to bit 0 of FLDC mode register (address 035016).
Note:
When performing a key-scan according to the above steps 1 to 4, take the following points into consideration.
1. Do not set “0” in bit 1 of the FLDC mode register (address 035016).
2. Do not set “1” in the ports corresponding to digits.
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