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HL7588 Datasheet(PDF) 30 Page - List of Unclassifed Manufacturers |
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HL7588 Datasheet(HTML) 30 Page - List of Unclassifed Manufacturers |
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30 / 53 page  4116369 Rev 9.0 September 04, 2017 30 Product Technical Specification Detailed Interface Specifications Pad Number Signal Name Multiplex I/O Power Supply Domain 51 GPIO14 I/O 1.8V 52 GPIO10 I/O 1.8V 53 GPIO11 I/O 1.8V 54 GPIO15 I/O 1.8V 64 GPIO3 UIM1_DET I/O 1.8V 65 GPIO4 I/O 1.8V 66 GPIO5 I/O 1.8V 3.9. Main Serial Link (UART1) The main serial link (UART1) is used for communication between the AirPrime HL7548 and HL7588 modules and a PC or host processor. It consists of a flexible 8-wire serial interface that complies with RS-232 interface. The supported baud rates of the UART1 are 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 500000, 750000, 921600, 1843200, 3000000 and 3250000 bit/s. The signals used by UART1 are as follows: • TX data (UART1_TX) • RX data (UART1_RX) • Request To Send (UART1_RTS) • Clear To Send (UART1_CTS) • Data Terminal Ready (UART1_DTR) • Data Set Ready (UART1_DSR) • Data Carrier Detect (UART1_DCD) • Ring Indicator (UART1_RI) Note: Signal names are according to PC view. UART1_DTR, UART1_DSR, UART1_DCD and UART1_RI are not available on the HL7548. UART1 pad description is summarized in the table below. Table 17. UART1 Pad Description Pad # Signal Name* I/O* Description 2 UART1_RI** O Signal incoming calls (data only), SMS, etc. 3 UART1_RTS I Request to send 4 UART1_CTS O AirPrime HL7548 or HL7588 is ready to receive AT commands 5 UART1_TX I Transmit data 6 UART1_RX O Receive data 7 UART1_DTR** I (active low) Prevents the AirPrime HL7588 from entering sleep mode, switches between data mode and command mode, and wakes the module up. |
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