Union and Structures

SI4844 data representation. More...

Data Structures
union	si4844_arg_band_index
	Configures band parameter. More...
union	SI4844_arg_band
	Configures all SI48XX parameters. More...
union	si4844_status
	Status. More...
struct	si4844_get_status
	Device Status. More...
union	si4844_status_response
	Status response. More...
struct	si4844_firmware_info
	Firmware Information. More...
union	si4844_audiomode
	Audio Mode. More...
union	si4844_audiomode_status_response
	Audio Status Response. More...
struct	si4844_arg_band_index.refined
struct	SI4844_arg_band.refined
struct	si4844_status.refined
struct	si4844_audiomode.arg1
struct	si4844_audiomode_status_response.status

Detailed Description

SI4844 data representation.

GA1

The goal of this approach is separating data from code. The SI4844 works with many internal data that can be represented by data structure or defined data type in C/C++.

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Data Structure Documentation

si4844_arg_band_index

union si4844_arg_band_index

Configures band parameter.

Represents searching for a valid frequency data type.

See also

Page 18 of the Si48XX ATDD PROGRAMMING GUIDE - AN610

Data Fields
struct si4844_arg_band_index.refined	refined
uint8_t	raw

SI4844_arg_band

union SI4844_arg_band

Configures all SI48XX parameters.

Represents searching for a valid frequency data type.

See also

Page 18 of the Si48XX ATDD PROGRAMMING GUIDE - AN610

Data Fields
struct SI4844_arg_band.refined	refined
uint8_t	raw[7]

si4844_status

union si4844_status

Status.

Represents searching for a valid frequency data type.

Data Fields
struct si4844_status.refined	refined
uint8_t	raw

si4844_get_status

struct si4844_get_status

Device Status.

The structure below represents the four bytes response got by command ATDD_GET_STATUS

See also

PROGRAMMING GUIDE, pages 14 and 15

Data Fields
uint8_t	BCFG0: 1
uint8_t	BCFG1: 1
uint8_t	STEREO: 1
uint8_t	STATION: 1
uint8_t	INFORDY: 1
uint8_t	HOSTPWRUP: 1
uint8_t	HOSTRST: 1
uint8_t	CTS: 1
uint8_t	BANDIDX: 6
uint8_t	BANDMODE: 2
uint8_t	d2: 4
uint8_t	d1: 4
uint8_t	d4: 4
uint8_t	d3: 4

si4844_status_response

union si4844_status_response

Status response.

See also

See Si48XX ATDD PROGRAMMING GUIDE, pages 14 and 15

Data Fields
si4844_get_status	refined
uint8_t	raw[4]

si4844_firmware_info

struct si4844_firmware_info

Firmware Information.

See also

Si48XX ATDD PROGRAMMING GUIDE, page 22.

Data Fields
uint8_t	RESERVED: 6
uint8_t	ERR: 1
uint8_t	CTS: 1
uint8_t	PN
uint8_t	FWMAJOR
uint8_t	FWMINOR
uint8_t	CMPMAJOR
uint8_t	CMPMINOR
uint8_t	CHIPREV

si4844_audiomode

union si4844_audiomode

Audio Mode.

Data Fields
struct si4844_audiomode.arg1	arg1
uint8_t	raw

si4844_audiomode_status_response

union si4844_audiomode_status_response

Audio Status Response.

Data Fields
struct si4844_audiomode_status_response.status	status
uint8_t	raw

si4844_arg_band_index.refined

struct si4844_arg_band_index.refined

Data Fields
uint8_t	BANDIDX:6
uint8_t	XOWAIT: 1
uint8_t	XOSCEN: 1

SI4844_arg_band.refined

struct SI4844_arg_band.refined

Data Fields
uint8_t	BANDIDX: 6
uint8_t	XOWAIT: 1
uint8_t	XOSCEN: 1
uint16_t	BANDBOT: 16
uint16_t	BANDTOP: 16
uint8_t	CHSPC: 8
uint8_t	DUMMY: 5
uint8_t	DFBAND: 1
uint8_t	UNI_AM: 1
uint16_t	TVFREQ: 1

si4844_status.refined

struct si4844_status.refined

Data Fields
uint8_t	D_0: 1
uint8_t	D_1: 1
uint8_t	D_2: 1
uint8_t	D_3: 1
uint8_t	D_4: 1
uint8_t	ERR: 1	1 = Error.
uint8_t	CTS: 1	0 = Wait before sending next command; 1 = Clear to send next command.

si4844_audiomode.arg1

struct si4844_audiomode.arg1

Data Fields
uint8_t	AUDIOMODE: 2
uint8_t	FM_MONO: 1
uint8_t	ADJPT_ATTN: 1
uint8_t	ADJPT_STEO: 1
uint8_t	Reserved: 2
uint8_t	OPCODE: 1

si4844_audiomode_status_response.status

struct si4844_audiomode_status_response.status

Data Fields
uint8_t	AUDIOMODE:2
uint8_t	FM_MONO:1
uint8_t	ADJPT_ATTN:1
uint8_t	ADJPT_STEO:1
uint8_t	Reserved:1
uint8_t	ERR:1
uint8_t	CTS:1