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ST10F296 数据表(PDF) 146 Page - STMicroelectronics |
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ST10F296 数据表(HTML) 146 Page - STMicroelectronics |
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146 / 346 page  Obsolete Product(s) - Obsolete Product(s) Parallel ports ST10F296E 146/346 Figure 43. Block diagram of pin P4.4 1. When SALSEL = 10, 8-bit segment address lines are selected and P4.4 outputs the address. Any attempt to use the CAN2 on P4.4 is masked. However, by enabling the I2C, the segment function is masked, pin P4.4 is automatically configured as open-drain and used to input and output the SCL alternate function. 2. When CAN parallel mode is selected, CAN2_RxD is remapped on P4.5. This occurs only if CAN1 is also enabled. If CAN1 is disabled, no remapping occurs. P4.4 Direction latch Write DP4.4 Read DP4.4 Port output latch Write P4.4 Read P4.4 MUX 1 0 MUX 1 0 Ext. memory data output MUX 1 0 1 Ext. memory function Output buffer MUX 0 1 Input latch Clock XPERCON.1 (CAN2EN) SCL data input enable SCL data output XPERCON.9 (I2CEN) MUX 1 0 MUX 0 1 CAN2_RxD data input XMISC.1 (CANPAR) P4.5 0 & & XPERCON.0 (CAN1EN) MUX 1 0 1 MUX 0 1 Open-drain latch Write ODP4.4 Read ODP4.4 0 MUX 0 1 1 Obsolete Product(s) - Obsolete Product(s) |
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