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): 48/107頁
文件大?。?/td> 788K
代理商: S1C6S460D
S1C6S460 TECHNICAL MANUAL
EPSON
37
CHAPTER 6: INPUT/OUTPUT PORTS
Table 6.2.2.1 FOUT clock frequency
Setting
Clock frequency (Hz)
fOSC3
OSC3 oscillation frequency
fOSC1/ 1
32,768
fOSC1/ 2
16,384
fOSC1/ 4
8,192
fOSC1/ 8
4,096
fOSC1/ 16
2,048
fOSC1/ 32
1,024
fOSC1/ 64
512
fOSC1/128
256
6.2.3 High impedance control
The terminal output state of output ports R00–R03, R10–R13, R20–R23, and R30–R33, may be selected for
high impedance state through the software in 4 bits groups. Control is done with the high impedance
control registers (HZR0–HZR3).
6.2.4 Control of output ports
The control registers for the output ports are explained below.
Table 6.2.4.1 Control registers of output ports
Address
Comment
Register
D3
D2
D1
D0
Name
Init
1
0
Output port (R00–R03)
Output port (R10–R13)
Output port (R20–R23)
F50H
R00
R/W
R03
R02
R01
R00
X
High
Low
R01
R02
R03
F51H
R10
R/W
R13
R12
R11
R10
X
High
Low
R11
R12
R13
F52H
R20
R/W
R23
R22
R21
R20
X
High
Low
R21
R22
R23
F53H
R30
R/W
X
Output port (R33)
PTCLK output
[SRDY (SIO READY)]
Output port (R30–R32)
High
Off
High
Low
On
Low
R31
R32
R33
F54H
R40
R/W
R43
R42
R41
R40
1
Output port (R43)
Buzzer output (BZ)
Output port (R42)
Clock output (FOUT)
[Buzzer inverted output (BZ)]
Output port (R41)
Output port (R40)
Clock inverted output (FOUT)
High
Off
High
Off
High
Off
Low
On
Low
On
Low
On
R41
R42
R43
R33
R32
R31
R30
F7BH
HZR0
R/W
HZR3
HZR2
HZR1
HZR0
0
R30–R33 output high-impedance control
R20–R23 output high-impedance control
R10–R13 output high-impedance control
R00–R03 output high-impedance control
Output
High-Z
HZR1
HZR2
HZR3
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