參數(shù)資料
型號: μPD789167Y
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
中文描述: 8位單片機(jī)微控制器(8位單片微控制器)
文件頁數(shù): 78/145頁
文件大小: 610K
代理商: ΜPD789167Y
Preliminary Product Information
77
μ
PD789166Y, 789167Y, 789176Y, 789177Y
(3) SMB0 control registers
The following five types of registers are used to control SMB0.
SMB control register 0(SMBC0)
SMB status register 0 (SMBS0)
SMB clock selection register 0 (SMBCL0)
SMB mode register 0 (SMBM0)
SMB input level setting register 0 (SMBVI0)
The following additional registers are also used.
SMB shift register 0 (SMB0)
Slave address register 0 (SMBSVA0)
(a) SMB control register 0 (SMBC0)
This register sets SMB operation enable/disable, the wait timing, and other SMB operations.
SMBC0 is manipulated with a 1-bit or 8-bit memory manipulation instruction.
A RESET input clears SMBC0 to 00H.
Caution
In SMB mode, set port mode registers 2 (PM2
×
) to achieve the following statuses. Also, set each
output latch to 0.
P23 (SCL0) is set to output mode (PM23 = 0).
P24 (SDA0) is set to output mode (PM24 = 0).
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