M306V2ME Datasheet, PDF (8/276 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
M306V2ME-XXXFP
M306V2EEFP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
Table 1.5.4 Pin description (continued) (2)
Pin name Signal name
I/O type
Function
P50 to P57 I/O port P5
WRL / WR,
WRH / BHE,
RD,
BCLK,
HLDA,
HOLD,
ALE,
RDY
P60 to P63,
P 67
I/O port P6
P70 to P77 I/O port P7
P82, P83,
P86, P87
I/O port P8
P90 to P94 I/O port P9
P100 to P107 I/O port P10
Input/output
Output
Output
Output
Output
Output
Input
Output
Input
Input/output
Input/output
Input/output
Input/output
Input/output
This is an 8-bit I/O port equivalent to P0. In single-chip mode, P57 in
this port outputs a divide-by-8 or divide-by-32 clock of XIN or a clock of
the same frequency as XCIN as selected by software.
Output WRL, WRH (WR and BHE), RD, BCLK, HLDA, and ALE
signals. WRL and WRH, and BHE and WR can be switched using
software control.
s WRL, WRH, and RD selected
With a 16-bit external data bus, data is written to even addresses
when the WRL signal is “L” and to the odd addresses when the WRH
signal is “L”. Data is read when RD is “L”.
s WR, BHE, and RD selected
Data is written when WR is “L”. Data is read when RD is “L”. Odd
addresses are accessed when BHE is “L”. Use this mode when using
an 8-bit external data bus.
While the input level at the HOLD pin is “L”, the microcomputer is
placed in the hold state. While in the hold state, HLDA outputs a “L”
level. ALE is used to latch the address. While the input level of the
RDY pin is “L”, the microcomputer is in the ready state.
This is an 5-bit I/O port equivalent to P0. When set for input in single-
chip, microprocessor and memory expansion modes, the user can
specify in units of four bits via software whether or not they are tied to a
pull-up resistor. Pins in this port also function as UART0, UART2 and
multi-master I²C-BUS interface 0 I/O pins as selected by software.
This is an 8-bit I/O port equivalent to P6 (P70 and P71 are N-channel
open-drain output). Pins in this port also function as timers A2 and A3,
UART2, multi-master I²C-BUS interface 0, or HSYNC counter I/O pins as
selected by software.
P82, P83, P86 and P87 are I/O ports with the same functions as P6.
Using software, P82 and P83 can be made to function as the I/O pins for
the input pins for external interrupts. P86 and P87 can be set using
software to function as the I/O pins for a sub-clock generation circuit. In
this case, connect a quartz oscillator between P86 (XCOUT pin) and P87
(XCIN pin).
This is an 5-bit I/O port equivalent to P6. Pins in this port also function
as Timer B0 to B2 input pins, D-A converter output pins, or multi-master
I²C-BUS interface 1 I/O pins.
This is an 8-bit I/O port equivalent to P6. Pins in this port also function
as A-D converter input pins. Furthermore, P100 and P101 also function
as input pins for OSD function.
R, G, B
OSD output Output
These are OSD output pins (analog output).
OUT1, OUT2 OSD output
OSC1
Clock input
for OSD
Output
Input
These are OSD output pins (digital output).
This is an OSD clock input pin.
OSC2
Clock output Output
for OSD
This is an OSD clock output pin.
CVIN
VHOLD
HLF
TVSETB
I/O for data
slicer
Test input
Input
Input composite video signal through a capacitor.
Input
Input/output
Connect a capacitor between VHOLD and Vss.
Connect a filter using of a capacitor and a resistor
between HLF and Vss.
Input
This is a test input pin. Fix it to “L.”
Rev. 1.0
8