SI2457-D-FS Silicon Laboratories Inc, SI2457-D-FS Datasheet - Page 291
SI2457-D-FS
Manufacturer Part Number
SI2457-D-FS
Description
IC ISOMODEM SYSTEM-SIDE 16SOIC
Manufacturer
Silicon Laboratories Inc
Specifications of SI2457-D-FS
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Figure 75 illustrates the MCU software architecture, and the MCU and modem hardware connections.
Application layer
Buffer management layer
Interrupt service and/or polling
Hardware access layer
MCU
Modem
Hardware Interface
Parallel interface
Parallel interface
Register 1 (HIR1)
Figure 75. MCU Software and Modem Interface
status_control.c
modem_hardware.c
receive FIFOs
Transmit and
SPI master
modem_main.c
SPI slave
Rev. 1.3
application_buffers.c
ISR_and_polling.c
UART interface
(UART, timers, etc.)
MCU_hardware.c
MCU hardware
dot_command_loop.c
Dot‐command shell
test_code.c
(Optional)
AN93
291
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