M30622MA-XXXFP RENESAS [Renesas Technology Corp], M30622MA-XXXFP Datasheet - Page 396

• Manufacturer Part Number: M30622MA-XXXFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY
• Manufacturer: RENESAS [Renesas Technology Corp]

SI/O3, 4
Figure 2.6.4. Set-up procedure of transmission in SI/O3, 4 mode
Writing transmit data
Reading Receive data
Setting SI/Oi bit rate generator
Clearing the protect (set to write-enabled state)
Setting SI/Oi transmit/receive control register (i=3, 4)
Note 2: Write to SI/Oi bit rate generator when transmission/reception is halted.
b7
b7
Note 3: Write to
Note 1: Be sure to set the protect register and SI/Oi control register successively.
b7
b7
b7
1
0
1
0
SI/Oi transmit/receive register
1
b0
b0
b0
b0
b0
S
Transfer format select bit
Synchronous clock select bit
SOUTi initial value set bit(Effective when SMi3=0)
Internal synchronous clock select bit
SI/Oi port select bit
Can be set to 00
b1 b0
0 : LSB first
SI/Oi bit rate generator (i = 3, 4) [Address 0363
SiBRG (i = 3, 4)
Enables writing to system clock control registers 0 and 1 (addresses 0006
Enables writing to port P9 direction register (address 03F3
(i=3,4) (addresses 0362
SI/Oi transmit/receive control register (i=3,4) [Address 0362
SiC(i=3,4)
0 : S
1 : Internal clock
0 : L output
1 : H output
Setting transmission data (Note 3)
0 0 : f
0 1 : f
1 0 : f
1 1 : Inhibited
1 : S
SI/Oi transmit/receive register (i=3, 4) [Address 0360
SiTRR (i=3, 4)
OUTi
0 : Write-inhibited
SI/Oi transmit/receive register (i=3, 4) [Address 0360
SiTRR (i=3, 4)
Receive data
1 : Write-enabled
1 : Write-enabled
Protect register [Address 000A
PRCR
Wait for a 1/2 transfer clock period
OUTi
output disable bit
OUTi
1
8
32
is selected
is selected
is selected
(i = 3, 4)
output
output, CLK function
Transfer the next data
16
SI/Oi interrupt
request bit
to FF
when transmission/reception is halted.
16
16
and 0366
(Note 2)
1
16
]
16
)
0
16
, 0367
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
16
16
16
, 0364
, 0364
]
16
16
) and SI/Oi control register
16
, 0366
16
]
]
16
]
16
and 0007
Mitsubishi microcomputers
M16C / 62 Group
16
)
381