CYRF69103_12 Datasheet, PDF (25/71 Pages) Cypress Semiconductor – Programmable Radio on Chip Low Power

CYRF69103
Trim values for the IOSCTR register:
The trim values are stored in SROM tables in the part as shown in Figure 10 on page 24.
The trim values are read out from the part based on voltage settings and written to the IOSCTR register at location 0x34. The following
pseudo code shows how this is done.
_main:
mov A, 2
mov [SSC_BLOCKID], A
Call SROM operation to read the SROM table (Refer to section SROM Table Read Description)
//After this command is executed, the trim values for 3.3, 3.0, 2.85 and 2.7 are stored at locations
FC through FF in the RAM. SROM calls are explained in the previous section of this datasheet
;
mov A, [FCh]
// trim values for 3.3V
mov A, [FDh]
// trim values for 3.0V
;
mov A, [FEh]
// trim values for 2.85V
;
mov A, [FFh]
// trim values for 2.70V
mov reg[IOSCTR],A // Loading IOSCTR with trim values for 3.0V
.terminate:
jmp .terminate
SROM Table Read Description
The Silicon IDs for CYRF69103 devices are stored in SROM tables in the part, as shown in Figure 10 on page 24.
The Silicon ID can be read out from the part using SROM Table reads. This is demonstrated in the following pseudo code. As
mentioned in the section SROM on page 20, the SROM variables occupy address F8h through FFh in the SRAM. Each of the variables
and their definition in given in the section SROM on page 20.
AREA SSCParmBlkA(RAM,ABS)
org F8h // Variables are defined starting at address F8h
SSC_KEY1:
; F8h supervisory key
SSC_RETURNCODE:
blk 1 ; F8h result code
SSC_KEY2 :
blk 1 ;F9h supervisory stack ptr key
SSC_BLOCKID:
blk 1 ; FAh block ID
SSC_POINTER:
blk 1 ; FBh pointer to data buffer
SSC_CLOCK:
blk 1 ; FCh Clock
SSC_MODE:
blk 1 ; FDh ClockW ClockE multiplier
SSC_DELAY:
blk 1 ; FEh flash macro sequence delay count
SSC_WRITE_ResultCode: blk 1 ; FFh temporary result code
_main:
mov A, 0
mov [SSC_BLOCKID], A// To read from Table 0 - Silicon ID is stored in Table 0
//Call SROM operation to read the SROM table
mov X, SP
; copy SP into X
mov A, X
; A temp stored in X
add A, 3
; create 3 byte stack frame (2 + pushed A)
mov [SSC_KEY2], A
; save stack frame for supervisory code
; load the supervisory code for flash operations
mov [SSC_KEY1], 3Ah ;FLASH_OPER_KEY - 3Ah
mov A,6
23 on page 20
SSC
; load A with specific operation. 06h is the code for Table read Table
; SSC call the supervisory ROM
// At the end of the SSC command the silicon ID is stored in F8 (MSB) and F9(LSB) of the SRAM
.terminate:
jmp .terminate
Document Number: 001-07611 Rev *H
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