m5m51016btp Renesas Electronics Corporation., m5m51016btp Datasheet - Page 52

• Manufacturer Part Number: m5m51016btp
• Description: Renesas 16-bit Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Figure 2.3.3. Serial I/O-related registers (2)
b7
UARTi bit rate generator (o=0 to 3) (Note 1, 2)
U A R T i t r a n s m i t / r e c e i v e m o d e r e g i s t e r ( i = 0 t o 3 )
b 7
b 6
b 5
b 4
b 3
b 2
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b 1
b0
b 0
Note 1: When I
Note 2: Normally set to “0”.
Note 3: Set the RxDi pin's port direction register to “0” when receiving.
s y m b o l
CKDIR
S M D 0
S M D 1
P R Y E
SMD2
STPS
SLEP
P R Y
B i t
(SCLi) to 0, or the port direction register to 1 and the port data register to 1. When a mode other than
serial I/O mode is selected, set the port direction register for the corresponding port (CLKi) to 0.
S y m b o l
U 0 M R
U 1 M R
U 2 M R
U 3 M R
S e r i a l I / O m o d e s e l e c t b i t
Internal/external clock
select bit
Stop bit length select bit
O d d / e v e n p a r i t y s e l e c t b i t
P a r i t y e n a b l e b i t
TxD, RxD input/output
polarity switch bit (Note 2)
Note 1: Use MOV instruction to write to this register.
Note 2: Write a value to this register while transmit/receive halts.
Assuming that set value = n, BRGi divides the count source by
n + 1
2
C bus interface mode is selected, set the port direction register for the corresponding port
B i t n a m e
( N o t e 3 )
Symbol
U0BRG
U1BRG
U2BRG
U3BRG
A d d r e s s
0 3 A 8
0 3 6 8
0 3 3 8
0 3 2 8
1 6
1 6
1 6
Function
1 6
0 : Internal clock
1 : External clock (Note 1)
0 : Normal
1 : Reversed
Inhibited except in cases
listed above
Invalid
Invalid
Invalid
( D u r i n g c l o c k s y n c h r o n o u s
M u s t b e f i x e d t o 0 0 1
0 0 0 : S e r i a l I / O i n v a l i d
0 1 0 : S e r i a l I / O m o d e
0 1 1 : I
b2 b1 b0
Address
s e r i a l I / O m o d e )
03A9
0369
0339
0329
W h e n r e s e t
2
F u n c t i o n
C m o d e
0 0
0 0
0 0
0 0
16
16
16
16
1 6
1 6
1 6
1 6
Indeterminate
Indeterminate
Indeterminate
Indeterminate
When reset
0 : Internal clock
1 : External clock (Note 1)
0 : One stop bit
1 : Two stop bits
V a l i d w h e n b i t 6 = “ 1 ”
0 : O d d p a r i t y
1 : E v e n p a r i t y
0 : P a r i t y d i s a b l e d
1 : P a r i t y e n a b l e d
1 0 0 : T r a n s f e r d a t a 7 b i t s l o n g
1 0 1 : T r a n s f e r d a t a 8 b i t s l o n g
1 1 0 : T r a n s f e r d a t a 9 b i t s l o n g
Inhibited except in cases
listed above
b2 b1 b0
2. Clock-Synchronous Serial I/O
Values that can be set
(During UART mode)
00
16
Function
to FF
16
R
W
R
W