数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

DSP56303 数据表(PDF) 109 Page - Freescale Semiconductor, Inc

部件名 DSP56303
功能描述  DSP56303 USER?셎 MANUAL
PDF  292 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  FREESCALE [Freescale Semiconductor, Inc]
网页  http://www.freescale.com
标志 FREESCALE - Freescale Semiconductor, Inc

DSP56303 数据表(HTML) 109 Page - Freescale Semiconductor, Inc

Back Button DSP56303 Datasheet HTML 105Page - Freescale Semiconductor, Inc DSP56303 Datasheet HTML 106Page - Freescale Semiconductor, Inc DSP56303 Datasheet HTML 107Page - Freescale Semiconductor, Inc DSP56303 Datasheet HTML 108Page - Freescale Semiconductor, Inc DSP56303 Datasheet HTML 109Page - Freescale Semiconductor, Inc DSP56303 Datasheet HTML 110Page - Freescale Semiconductor, Inc DSP56303 Datasheet HTML 111Page - Freescale Semiconductor, Inc DSP56303 Datasheet HTML 112Page - Freescale Semiconductor, Inc DSP56303 Datasheet HTML 113Page - Freescale Semiconductor, Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 109 / 292 page
background image
Operation
DSP56303 User’s Manual, Rev. 2
Freescale Semiconductor
6-9
respectively. When host requests are enabled, the host request pins operate as shown in Figure
6-3.
Table 6-5 shows the operation of the HREQ pin when a single request line is used. The host can
test these ICR bits to determine the interrupt source.
Table 6-6 shows the operation of the transmit request (HTRQ) and receive request (HRRQ) lines
with dual host requests enabled.
6.4.5 Endian Modes
The Host Little Endian bit in the host-side Interface Control Register (ICR[5] = HLEND) allows
the host to access the HI08 data registers in Big Endian or Little Endian mode. In Little Endian
mode (HLEND = 1), a host transfer occurs as shown in Figure 6-4.
Figure 6-3. HI08 Host Request Structure
Table 6-5. HREQ Pin Operation In Single Request Mode (ICR[2] = HDRQ = 0)
ICR[1] = TREQ
ICR[0] = RREQ
HREQ Pin
0
0
No interrupts
0
1
RXDF request enabled
1
0
TXDE request enabled
1
1
RXDF and TXDE request enabled
Table 6-6. HTRQ and HRRQ Pin Operation In Double Request Mode (ICR[2] = HDRQ = 1)
ICR[1] = TREQ
ICR[0] = RREQ
HTRQ Pin
HRRQ Pin
0
0
No interrupts
No interrupts
0
1
No interrupts
RXDF request enabled
1
0
TXDE Request enabled
No interrupts
1
1
TXDE Request enabled
RXDF request enabled
$0
HF1
HF0
HLEND TREQ RREQ ICR
Enable
70
INIT
0
0
Status
70
$2
HF3
HF2
TRDY
TXDE RXDF ISR
HREQ
0
0
Host Request
Asserted
HRRQ
HREQ
HTRQ
Host Request
Signals



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com