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MTV312M View Datasheet(PDF) - Myson Century Inc

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MTV312M Datasheet PDF : 27 Pages
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MYSON
TECHNOLOGY
MTV312M64
(Rev 0.99)
COP10 = 1
=0
Pin “P1.0” is CMOS Output.
Pin “P1.0” is 8051 standard I/O.
OPTION (w) : Chip option configuration (All are "0" in Chip Reset).
PWMF = 1 Selects 94KHz PWM frequency.
= 0 Selects 47KHz PWM frequency.
DIV253 = 1 PWM pulse width is 253-step resolution.
= 0 PWM pulse width is 256-step resolution.
FclkE = 1 CPU is running at double rate
= 0 CPU is running at normal rate
ENSCL = 1 Enable slave IIC block to hold HSCL pin low while MTV312M64 is unable to
catch-up with the external master's speed.
Msel = 1 Master IIC block connect to HSCL/HSDA pins.
= 0 Master IIC block connect to ISCL/ISDA pins.
MIICF1,MIICF0 = 1,1 Selects 400KHz Master IIC frequency.
= 1,0 Selects 200KHz Master IIC frequency.
= 0,1 Selects 50KHz Master IIC frequency.
= 0,0 Selects 100KHz Master IIC frequency.
4. I/O Ports
4.1 Port1
Port1 is a group of pseudo open drain pins or CMOS output pins. It can be used as general purpose I/O.
Behavior of Port1 is the same as standard 8051.
4.2 P3.0-2, P3.4-5
If these pins are not set as IIC pins, Port3 can be used as general purpose I/O, interrupt, UART and Timer
pins. Behavior of Port3 is the same as standard 8051.
4.3 Port4, Port5 and Port6
Port5 and Port6 are used as general purpose I/O. S/W needs to set the corresponding P5(n)oe and P6(n)oe
to define whether these pins are input or output. Port4 is pure output.
Reg name addr
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
PORT5 F30h(r/w)
P50
PORT5 F31h(r/w)
P51
PORT5 F32h(r/w)
P52
PORT5 F33h(r/w)
P53
PORT5 F34h(r/w)
P54
PORT5 F35h(r/w)
P55
PORT5 F36h(r/w)
P56
PORT6 F38h(r/w)
P60
PORT6 F39h(r/w)
P61
PORT6 F3Ah(r/w)
P62
PORT6 F3Bh(r/w)
P63
PORT6 F3Ch(r/w)
P64
PORT6 F3Dh(r/w)
P65
PORT6 F3Eh(r/w)
P66
PORT6 F3Fh(r/w)
P67
PORT4 F58h(w)
P40
PORT4 F59h(w)
P41
PORT4 F5Ah(w)
P42
Revision 0.99
- 8-
2001/07/26
 

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