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參數(shù)資料
| 型號： | S1C6S460D |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 2 MHz, MICROCONTROLLER, UUC124 |
| 封裝： | 4.69 X 4.68 MM, DIE-124 |
| 文件頁數(shù)： | 46/107頁 |
| 文件大?。?/td> | 788K |
| 代理商： | S1C6S460D |
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S1C6S460 TECHNICAL MANUAL
EPSON
35
CHAPTER 6: INPUT/OUTPUT PORTS
6.2 Output Ports (Rxx)
6.2.1 Configuration of output ports
The S1C6S460 has 20 bits (4 bits
× 5, R00–R03, R10–R13, R20–R23, R30–R33, and R40–R43) general output
ports built-in.
Figure 6.2.1.1 shows the configuration of the output port.
VDD
VSS
R
Data
bus
Address
High impedance
control register
Mask
option
Data register
Address
Fig. 6.2.1.1 Configuration of output port
6.2.2 Mask option
The output ports may be selected for the following by mask option.
(1) Output specification of output ports
The output specification of the output ports may be selected as listed below. Two types of output
specification may be selected: complementary output and N channel (Nch) open drain output.
However, even if Nch open drain is selected, application on the terminal of voltage exceeding the
power current voltage is not permitted.
R00–R03: Complementary or Nch open drain (selected with the 4 bits group)
R10–R13: Complementary or Nch open drain (selected with the 4 bits group)
R20–R22: Complementary or Nch open drain (selected with the 3 bits group)
R23:
Complementary or Nch open drain
R30–R33: Complementary or Nch open drain (select in units of 1 bit)
R40–R43: Complementary or Nch open drain (select in units of 1 bit)
(2) Special output
Output ports R33, R40, R42 and R43 may be selected, in addition to DC output, as special output port
as follows:
R33: SIO Ready (SRDY) or programmable timer operating clock output (PTCLK)
R40: Clock inverted output (FOUT)
R42: Buzzer inverted output (BZ) or clock output (FOUT)
R43: Buzzer output (BZ)
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