MTV512MV View Datasheet(PDF) - Myson Century Inc
Part Name
Description
Manufacturer
MTV512MV Datasheet PDF : 26 Pages
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MTV512M
Preliminary
=0
COP11 = 1
=0
COP10 = 1
=0
P77oe = 1
=0
P76oe = 1
=0
IP77E = 1
=0
CKOE2 = 1
=0
→ Pin “P1.2” is 8051 standard I/O.
→ Pin “P1.1” is CMOS Output.
→ Pin “P1.1” is 8051 standard I/O.
→ Pin “P1.0” is CMOS Output.
→ Pin “P1.0” is 8051 standard I/O.
→ P7.7 is output pin.
→ P7.7 is input pin.
→ P7.6 is output pin.
→ P7.6 is input pin.
→ Pin “P7.7 is P7.7. Available in ICE Mode only.
→ reserved.
→ Pin “P7.6/CLKO2” is CLKO2.
→ Pin “P7.6/CLKO2” is P7.6.
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
DCLK = 1 → CLKO1 & CLKO2 outputs double frequency system clock.
= 0 → CLKO1 & CLKO2 outputs single frequency system clock.
ENSCL = 1 → Enable slave IIC block to hold HSCL pin low while MTV512M is unable to
catch-up with the external master's speed.
I/O Ports
i) 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.
ii) P3.0-2, P3.4
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.
iii) Port5, Port6 and Port7
Port5, Port6 and Port7 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.
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
page 10 of 10
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