M30218 Datasheet, PDF (105/179 Pages) Mitsubishi Electric Semiconductor – M30218 Group

Serial I/O2
Mitsubishi microcomputers
M30218 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Serial I/O2 automatic transfer data pointer
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
SIO2DP
Address
034016
When reset
0016
Function
• Automatic transfer data pointer set
Specify the low-order 8 bits of the first data store address on the serial I/O
automatic transfer RAM.
Data is written into the latch and read from the decrement counter.
RW
Serial I/O2 register/transfer counter
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
SIO2
Address
034616
When reset
0016
Function
• Number of automatic transfer data set
Set the number of automatic transfer data.
Set a value one less than number of transfer data.
Data is written into the latch and read from the decrement counter.
RW
Serial I/O2 control register 3
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
SIO2CON3
Address
034816
When reset
000000002
Bit symbol
Bit name
TTRAN0
TTRAN1
Automatic transfer
interval set bits
TTRAN2
TTRAN3
TTRAN4
TCLK0
Internal synchronous
clock selection bits
TCLK1
TCLK2
Function
b4b3b2b1b0
00000 :2 cycles of transfer clocks
00001 :3 cycles of transfer clocks
:
11110 :32 cycles of transfer clocks
11111 :33 cycles of transfer clocks
Data is written to a latch and read from
a decrement counter.
b7b6b5
000:f(XIN)/4
001:f(XIN)/8
010:f(XIN)/16
011:f(XIN)/32
100:f(XIN)/64
101:f(XIN)/128
110:f(XIN)/256
RW
Figure GA-3. Serial I/O2 automatic transfer data pointer
104