参数资料
型号: MC68HC705E5DW
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封装: SOIC-28
文件页数: 142/148页
文件大小: 620K
代理商: MC68HC705E5DW
Motorola Bus (M Bus) Interface
Operation During Wait Mode
MC68HC705E5 Rev. 1.0
General Release Specification
MOTOROLA
Motorola Bus (M Bus) Interface
93
NON-DISCLOSURE
AGREEMENT
REQUIRED
MAL = 1 and MSTA = 0. If one master attempts to start transmission
while the bus is being engaged by another master:
1. The hardware will inhibit the transmission.
2. The MSTA bit will switch from one to zero without generating a
stop condition.
3. Interrupt to CPU will be generated.
4. MAL will be set to indicate that the attempt to engage the bus has
failed.
In consideration of these cases, the slave service routine should test the
MAL first, and software should clear the MAL bit if it is set.
11.9 Operation During Wait Mode
During wait mode the M-bus block is idle. If in slave mode, the M-bus
block will wake up on receiving a valid start condition. If the interrupt is
enabled, the CPU will come out of wait mode after the end of a byte
transmission.
11.10 Operation During Stop Mode
In stop mode, the whole block is disabled.
相关PDF资料
PDF描述
MC68HC705G1B 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP56
MC68HC705G1FU 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP64
MC68HC05G1B 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56
MC68HC705JB2DW 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDSO20
MC68HC705JB2P 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDIP20
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