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TS68230P Scheda tecnica(PDF) 4 Page - STMicroelectronics |
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TS68230P Scheda tecnica(HTML) 4 Page - STMicroelectronics |
4 / 61 page Table 1.1 : Port Mode Control Summary. Mode 0 (unidirectional 8-bit mode) Port A Submode 00 - Pin-definable Double-buffered Input or Single-buffered Output H1 - Latches Input Data H2 - Status/interrupt Generating Input, General-purpose Output, or Operation with H1 in the Interlocked or Pulsed Handshake Protocols Submode 01 - Pin-definable Double-buffered Output or Non-latched Input H1 - Indicates Data Received by Peripheral H2 - Status/interrupt Generating Input, General-purpose Output, or Operation with H1 in the Interlocked or Pulsed Handshake Protocols Submode 1X - Pin-definable Single-buffered Output or non-latched Input H1 - Status/interrupt Generating Input H2 - Status/interrupt Generating Input or General-purpose Output Port B H3 and H4 - Identical to Port A, H1 and H2 Mode 1 (unidirectional 16-bit mode) Port A - Most-significant Data Byte or non-latched Input or Single-buffered Output Submode XX - (not used) H1 - Status/interrupt Generating Input H2 - Status/interrupt Generating Input or General-purpose Output Port B - Least-significant Data Byte Submode X0 - Pin-definable Double-buffered Input or Single-buffered Output H3 - Latches Input Data H4 - Status/interrupt Generating Input, General-purpose Output, or Operation with H3 in the Interlocked or pulsed handshake Protocols Submode X1 - Pin-definable Double-buffered Output or Non-latched Input H3 - Indicates Data Received by Peripheral H4 - Status/interrupt Generating Input, General-purpose Output, or Operation with H3 in the Interlocked or Pulsed Hanshake Protocols Mode 2 (bidirectional 8-bit mode) Port A - Bit I/O Submode XX - (not used) Port B - Double-buffered Bidirectional Data Submode XX - (not used) H1 - Indicates Output Data Received by the Peripheral and Controls Output Drivers H2 - Operation with H1 in the Interlocked or Pulsed Output Handshake Protocols H3 - Latches Input Data H4 - Operation with H3 in the Interlocked or Pulsed Input Handshake Protocols Mode 3 (bidirectional 16-bit mode) Port A - Double-buffered Bidirectional Data (most-signifiant data byte) Submode XX - (not used) Port B - Double-buffered Bidirectional Data (least-signifiant data byte) Submode XX - (not used) H1 - Indicates Output Data Received by the Peripheral and Controls Output Drivers H2 - Operation with H1 in the Interlocked or Pulsed Output Handshake Protocols H3 - Latches Input Data H4 - Operation with H3 in the Interlocked or Pulsed Input Handshake Protocols TS68230 4/61 |
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