Texas Instruments TMS320 2833 Series

(GPIO12=0)
SignalhostthatDSP isready
(GPIO13=0)
?
Data
ready
Yes
fromXD[15:0]
Readwordofdata
(GPIO12=1)
DSP ackreadcomplete
(GPIO13=1)
ack
Host
No
?
A
ack
Host
(GPIO12=1)
DSP ackreadcomplete
(GPIO13=1)
?
ready
Data
(GPIO12=0)
SignalhostthatDSP
(GPIO13=0)
isreadytoreadMSB
?
A
Readwordfrom
XD[15:0],discard
theupper8bits,MSB
ofdata=lower8bits
ReturnWordData
WordData=MSB:LSB
No
No
No
Yes
Yes
Yes
XINTF_Parallel_GetWordData
8bit
www.ti.com Bootloader Features
203
SPRUI07–March 2020
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
Boot ROM
Figure 2-29. 8-Bit Parallel GetWord Function