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C161RI Datasheet(PDF) 10 Page - Siemens Semiconductor Group |
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C161RI Datasheet(HTML) 10 Page - Siemens Semiconductor Group |
10 / 60 page Semiconductor Group 10 1998-05-01 C161RI 1) The following behavior differences must be observed when the bidirectional reset is active: q Bit BDRSTEN in register SYSCON cannot be changed after EINIT. q After a reset bit BDRSTEN is cleared. q The reset indication flags always indicate a long hardware reset. q The PORT0 configuration is treated like on a hardware reset. Especially the bootstrap loader may be activated when P0L.4 is low. q Pin RSTIN may only be connected to external reset devices with an open drain output driver. q A short hardware reset is extended to the duration of the internal reset sequence. P6.0 – P6.7 79 – 86 79 ... 83 84 85 86 81 – 88 81 ... 85 86 87 88 I/O I/O O ... O I/O I/O I/O Port 6 is an 8-bit bidirectional I/O port. It is bit-wise programmable for input or output via direction bits. For a pin configured as input, the output driver is put into high- impedance state. The Port 6 pins also serve for alternate functions: P6.0 CS0 Chip Select 0 Output ... ... ... P6.4 CS4 Chip Select 4 Output P6.5 SDA1 I2C Bus Data Line 1 P6.6 SCL1 I2C Bus Clock Line 1 P6.7 SDA2 I2C Bus Data Line 2 Note: Pins P6.5-P6.7 are open drain outputs only. P2.8 – P2.15 87 – 94 87 ... 94 89 – 96 89 ... 96 I/O I/O I ... I Port 2 is an 8-bit bidirectional I/O port. It is bit-wise programmable for input or output via direction bits. For a pin configured as input, the output driver is put into high- impedance state. The following Port 2 pins also serve for alternate functions: P2.8 EX0IN Fast External Interrupt 0 Input ... ... ... P2.15 EX7IN Fast External Interrupt 7 Input V AREF 95 97 - Reference voltage for the A/D converter. V AGND 96 98 - Reference ground for the A/D converter. V DD 6, 23, 37, 47, 65, 75 8, 25, 39, 49, 67, 77 - Digital Supply Voltage: + 5 V during normal operation and idle mode. ≥ 2.5 V during power down mode V SS 3, 22, 36, 46, 64, 74 5, 24, 38, 48, 66, 76 - Digital Ground. Pin Definitions and Functions (cont’d) Symbol Pin No. TQFP Pin No. MQFP Input Outp Function |
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