参数资料
型号: M37272M6-XXXFP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42
封装: 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42
文件页数: 13/145页
文件大小: 1928K
代理商: M37272M6-XXXFP
Pin
Name
Input/
Functions
Output
P30/AD5,
I/O port P3
I/O
Ports P30 and P31 are a 2-bit I/O port and has basically the same functions as port 0.
P31/AD6
The output structure can be selected either CMOS output or N-channel open-drain output
structure. (See notes 1, 3)
Analog input
Input
Pins P30 and P31 are also used as analog input pins AD5 and AD6 respectively.
P50/HSYNC,
Input port P5
Input
Pin P50 and P51 are 2-bit input ports.
P51/VSYNC
HSYNC input
Input
Pin P50 is also used as HSYNC input. This is a horizontal synchronous signal input for OSD.
VSYNC input
Input
Pin P51 is also used as VSYNC input. This is a vertical synchronous signal input for OSD.
P52/R,
Output port P5
Output
Ports P52–P55 are a 4-bit output port. The output structure is CMOS output.
P53/G,
P54/B,
OSD output
Output
Pins P52–P55 are also used as OSD output pins R, G, B, OUT1 respectively. The output
P55/OUT1
structure is CMOS output.
CVIN
I/O for data slicer
Input
Input composite video signal through a capacitor.
VHOLD
Input
Connect a capacitor between VHOLD and Vss.
HLF
I/O
Connect a filter using of a capacitor and a resistor between HLF and Vss.
Notes 1: Port Pi (i = 0 to 3) has the port Pi direction register which can be used to program each bit as an input (“0”) or an output (“1”). The pins programmed as “1”
in the direction register are output pins. When pins are programmed as “0,” they are input pins. When pins are programmed as output pins, the output data
are written into the port latch and then output. When data is read from the output pins, the output pin level is not read but the data of the port latch is read.
This allows a previously-output value to be read correctly even if the output LOW voltage has risen, for example, because a light emitting diode was directly
driven. The input pins are in the floating state, so the values of the pins can be read. When data is written into the input pin, it is written only into the port
latch, while the pin remains in the floating state.
2: To switch output functions, set the raster color register and OSD control register. When pins P26 and P27 are used as the OSD clock input/output pins, set
the corresponding bits of the port P2 direction register to “0” (input mode).
3: To switch output structures, set bits 2 and 3 of the port P3 direction register, When “0,” CMOS output ; when “1,” N-channel open-drain output.
Table 7.2 Pin Description (continued)
8
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37272M6/M8–XXXSP/FP, M37272MA–XXXSP
M37272E8SP/FP, M37272EFSP
MITSUBISHI MICROCOMPUTERS
Rev. 1.4
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