參數(shù)資料
型號(hào): S1C60L16F0A0100
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 0.032768 MHz, MICROCONTROLLER, PQFP80
封裝: PLASTIC, QFP14-80
文件頁(yè)數(shù): 72/105頁(yè)
文件大小: 841K
代理商: S1C60L16F0A0100
S1C60N16 TECHNICAL MANUAL
EPSON
59
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Sound Generator)
ENVRT: Envelope decay time (2F7HD2)
This input selects the decay time of the envelope added to the buzzer signal.
When "1" is written : 1.0 sec (125 msec
× 7 = 875 msec)
When "0" is written : 0.5 sec (62.5 msec
× 7 = 437.5 msec)
Read-out : Valid
The decay time of the digital envelope is decided by the time taken for the duty ratio to change. When "1"
is written to ENVRT the time is 125 msec (8 Hz) units, and when "0" is written it is 62.5 msec (16 Hz)
units.
At initial reset, 0.5 sec (437.5 msec) is selected.
R10, R13 (at BZ, BZ output selection): Special output port data (2ECHD0, D3)
These control output of the buzzer signals (BZ, BZ).
When "1" is written : Buzzer signal output
When "0" is written : Low level (DC) output
Read-out : Valid
BZ output under R13 control
BZ output and BZ output can be controlled independently. BZ output is controlled by writing data to
register R10. BZ output is controlled by writing data to register R13.
BZ output under R10 control
By writing data to register R10 only, BZ output and BZ output can be controlled simultaneously. In
this case, register R13 can be used as a read/write one-bit general register. This register does not affect
BZ output (output to pin R13).
At initial reset, R10 and R13 are set to "0".
4.11.6 Programming note
A hazard may be observed in the output waveform of the BZ and BZ signals when data of the output
registers (R10, R13) and the buzzer frequency selection registers (BZFQ0–BZFQ2) changes.
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