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| 型号： | M37547G2FP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO36 |
| 封装： | 8.40 X 15 MM, 0.80 MM PITCH, PLASTIC, SSOP-36 |
| 文件页数： | 40/97页 |
| 文件大小： | 1064K |
| 代理商： | M37547G2FP |
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REJ03B0156-0122
Rev.1.22
Mar 31, 2009
page 45 of 94
7547 Group
Bus collision detection (SIO1)
SIO1 can detect a bus collision by setting UART1 bus collision de-
tection interrupt enable bit.
When transmission is started in the clock synchronous or asyn-
chronous (UART) serial I/O mode, the transmit pin TxD1 is
compared with the receive pin RxD1 in synchronization with rising
edge of transmit shift clock. If they do not coincide with each other,
a bus collision detection interrupt request occurs.
When a transmit data collision is detected between LSB and MSB
of transmit data in the clock synchronous serial I/O mode or be-
tween the start bit and stop bit of transmit data in UART mode, a
bus collision detection can be performed by both the internal clock
and the external clock.
A block diagram is shown in Fig. 54.
A timing diagram is shown in Fig. 55.
Note: Bus collision detection can be used when SIO1 is operating
at full-duplex communication. When SIO1 is operating at
half-duplex communication, set bus collision detection inter-
rupt to be disabled.
Fig. 54 Block diagram of bus collision detection interrupt circuit
Fig. 55 Timing diagram of bus collision detection interrupt
D
TxD1
RxD1
Shift clock
UART1 bus collision detection
interrupt valid bit
(Address 000A16, bit 1)
UART1 bus collision detection
interrupt discrimination bit
(Address 000B16, bit 1)
Key-on wakeup/
UART1 bus collision detection
interrupt request bit
(Address 003C16, bit 6)
Key-on wakeup interrupt request
Q
0 : No interrupt request issued
Interrupt source set register
(INTSET: address 000A16, initial value: 0016)
Key-on wakeup interrupt valid bit
b7
b0
0: Interrupt invalid
Interrupt source discrimination register
(INTDIS: address 000B16, initial value: 0016)
Key-on wakeup interrupt discrimination bit
b7
b0
Interrupt request register 1
(IREQ1 : address 003C16, initial value : 0016)
Serial I/O1 receive interrupt request bit
b7
b0
Serial I/O1 receive interrupt enable bit
0 : Interrupts disabled
Interrupt control register 1
(ICON1 : address 003E16, initial value : 0016)
b7
b0
1 : Interrupts enabled
CNTR0 interrupt enable bit
Key-on wake up/UART1 bus collision
INT1 interrupt enable bit
INT0 interrupt enable bit
Serial I/O2 transmit interrupt enable bit
Serial I/O2 receive interrupt enable bit
Serial I/O1 transmit interrupt enable bit
detection interrupt enable bit
1 : Interrupt request issued
CNTR0 interrupt request bit
detection interrupt request bit
Key-on wake up/UART1 bus collision
INT1 interrupt request bit
INT0 interrupt request bit
Serial I/O2 transmit interrupt request bit
Serial I/O2 receive interrupt request bit
Serial I/O1 transmit interrupt request bit
1: Interrupt occurs
0: Interrupt does not occur
Not used (returns “0” when read)
Timer 1 interrupt discrimination bit
A/D conversion interrupt discrimination bit
discrimination bit
UART1 bus collision detection interrupt
1: Interrupt valid
Not used (returns “0” when read)
Timer 1 interrupt valid bit
A/D conversion interrupt valid bit
UART1 bus collision detection
interrupt valid bit
Fig. 53 Bus collision detection circuit related registers
Bus collision detection
interrupt generation
Data collision
Transmit shift clock
Transmit pin TxD1
Receive pin RxD1
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相关代理商/技术参数 |
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| M37547G2FP#U0 | 功能描述:MCU 2/5V 8KB 36-SSOP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 标准包装:250 系列:80C 核心处理器:8051 芯体尺寸:8-位 速度:16MHz 连通性:EBI/EMI，I²C，UART/USART 外围设备:POR，PWM，WDT 输入/输出数:40 程序存储器容量:- 程序存储器类型:ROMless EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4.5 V ~ 5.5 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-LCC（J 形引线） 包装:带卷 (TR) |
| M37547G2-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37547G4FP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37547G4FP#U0 | 功能描述:MCU 2/5V 16K 36-SSOP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 标准包装:250 系列:80C 核心处理器:8051 芯体尺寸:8-位 速度:16MHz 连通性:EBI/EMI，I²C，UART/USART 外围设备:POR，PWM，WDT 输入/输出数:40 程序存储器容量:- 程序存储器类型:ROMless EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4.5 V ~ 5.5 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-LCC（J 形引线） 包装:带卷 (TR) |
| M37547G4-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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