R5F21122FP#U0 Renesas Electronics America, R5F21122FP#U0 Datasheet - Page 105

• Manufacturer Part Number: R5F21122FP#U0
• Description: IC R8C MCU FLASH 8K 32LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/12r

Specifications of R5F21122FP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SIO, UART/USART
• Peripherals: LED, WDT
• Number Of I /o: 22
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 32-LQFP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13R0E521134EPB00 - KIT EMULATOR PROBE FOR PC7501R0E521134CPE00 - EMULATOR COMPACT R8C/13
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/12 Group
Rev.1.20
REJ09B0110-0120
Figure 13.5 U0C1 and U1C1 Registers and UCON Register
U A R T i t r a n s m i t / r e c e i v e c o n t r o l r e g i s t e r 1 ( i = 0 , 1 )
b 7
U A R T t r a n s m i t / r e c e i v e c o n t r o l r e g i s t e r 2
b 7
N O T E S :
1 . A s f o r t h e U A R T 1 , s e t t h e T X D 1 E N b i t i n t h e U C O N r e g i s t e r b e f o r e s e t t i n g t h i s b i t t o r e c e p t i o n e n a b l e d .
2 . T h e R I b i t i s s e t t o " 0 " w h e n t h e h i g h e r b y t e o f t h e U i R B r e g i s t e r i s r e a d .
N O T E S :
1 . F o r P 3
2 . D o n o t s e t t h e T X D 1 S E L a n d T X D 1 E N b i t s t o “ 1 ” a t t h e s a m e t i m e s i n c e t h e y f u n c t i o n i n d e p e n d e n t l y .
b 6
b 6
Jan 27, 2006
S e t t h e P D 3 _ 7 b i t i n t h e P D 3 r e g i s t e r t o “ 0 ” ( i n p u t m o d e ) w h e n r e c e i v i n g .
b 5
b 5
b 4
b 4
0 0
7
, s e l e c t “ 0 ” ( R x D
b 3
b 3
b 2
b 2
b 1
b1
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b 0
b 0
T X D 1 S E L
T X D 1 E N
U 0 R R M
1
s y m b o l
( b 4 - b 3 )
( b 7 - b 4 )
symbol
U0IRS
U 1 I R S
T E
T I
R E
R I
) f o r d a t a r e c e i v e , a n d “ 1 ” ( T x D
(b7)
B i t
Bit
S y m b o l
Symbol
UCON
U 0 C 1
U 1 C 1
T r a n s m i t e n a b l e b i t
T r a n s m i t b u f f e r
e m p t y f l a g
R e c e i v e e n a b l e b i t
R e c e i v e c o m p l e t e f l a g
N o t h i n g i s a s s i g n e d .
W h e n w r i t e , s e t “ 0 ” . W h e n r e a d , i t s c o n t e n t i s “ 0 ” .
UART0 transmit
interrupt cause select bit
U A R T 1 t r a n s m i t
i n t e r r u p t c a u s e s e l e c t b i t
U A R T 0 c o n t i n u o u s
r e c e i v e m o d e e n a b l e b i t
P o r t T x D
T x D
R e s e r v e d b i t
N o t h i n g i s a s s i g n e d .
W h e n w r i t e , s e t “ 0 ” . W h e n r e a d , i t s c o n t e n t i s “ 0 ” .
1 0
/ R x D
B i t n a m e
B i t n a m e
1 1
1
s w i t c h i n g b i t
s e l e c t b i t
(1 )
A d d r e s s
Address
0 0 A D
0 0 A 5
00B0
1 0
(2 )
( 1 , 2 )
) f o r d a t a t r a n s f e r .
( 2 )
1 6
1 6
16
0 : T r a n s m i s s i o n d i s a b l e d
1 : T r a n s m i s s i o n e n a b l e d
0 : D a t a p r e s e n t i n U i T B r e g i s t e r
1 : N o d a t a p r e s e n t i n U i T B r e g i s t e r
0 : R e c e p t i o n d i s a b l e d
1 : R e c e p t i o n e n a b l e d
0 : N o d a t a p r e s e n t i n U i R B r e g i s t e r
1 : D a t a p r e s e n t i n U i R B r e g i s t e r
0 : Transmit buffer empty (Tl = 1)
1 : Transmission completed (TXEPT = 1)
0 : Transmit buffer empty (Tl = 1)
1 : Transmission completed (TXEPT = 1)
0 : Continuous receive mode disabled
1 : Continuous receive mode enable
0 : I/O port P0
1 : TxD
0 : RxD
1 : TxD
Must set to “0”
A f t e r r e s e t
After reset
11
10
1
0 2
0 2
00
1 6
1 6
16
0
F u n c t i o n
F u n c t i o n
13. Serial Interfaces
RW
RW
RW
R W
R W
R W
RW
R W
R W
R W
RO
RO