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TPU3035 参数 Datasheet PDF下载

TPU3035图片预览
型号: TPU3035
PDF下载: 下载PDF文件 查看货源
内容描述: 图文电视处理器 [Teletext Processors]
分类和应用: 电视
文件页数/大小: 73 页 / 1175 K
品牌: MICRONAS [ MICRONAS ]
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TPU 3035, TPU 3040  
PRELIMINARY DATA SHEET  
Note:  
Ifnototherwisedesignated, allparametersinthefollowingtablearespecifiedassinglebytes. Aswriteparame-  
ter magazine numbers 8 and 0 have the same meaning, as read parameter the magazine number is a true 4-bit  
number (e.g. magazine 8 = 00001000). For write parameters the values in parentheses indicate default values  
after reset (in hex notation). For compatibility reasons every undefined bit in a write parameter should be set to  
‘0’. Undefined bits in a read parameter should be treated as “don’t care”.  
Table 4–19: Command Codes  
Code  
Function  
Write Parameter  
Read Parameter  
Notes  
Operational & Test Commands  
00  
01  
02  
03  
Dummy  
Reset  
no action  
software reset of 65C02  
escape to other codes  
Escape  
Version  
CPU pointer high  
CPU pointer low  
show version in OSD layer  
CPU pointer to text in ROM  
04  
05  
06  
Test  
reserved for testing  
reserved for testing  
Test  
DRAM Mode  
dram mode  
flash inc  
control enable  
(06)  
(05)  
(FF)  
dram mode = I/O page register 028EH  
flash freq = flash inc / (256 * 0.00324)  
control enable:  
bit0 = C4 erase page  
bit1 = C5 news flash  
bit2 = C6 subtitle  
bit3 = C7 suppress header  
bit4 = C8 update indicator  
bit5 = C9 interrupted sequence  
bit6 = C10 inhibit display  
bit7 = C11 magazine parallel  
07  
Acquisition Mode  
acquisition mode  
init subcode high  
init subcode low  
gain max  
(00)  
(FF)  
(FF)  
(1F)  
(1F)  
gain  
filter  
acquisition mode:  
bit0 = no slicer adaption  
bit1 = no bit error in framing code  
bit2 = limit slicer adaption  
init subcode:  
filter max  
automatic subcode request after  
page table reset  
gain max: only used if bit2 = 1  
filter max: only used if bit2 = 1  
Memory Management Commands  
14  
Read DRAM Size  
dram size high  
dram size low  
dram size:  
0080H = 256Kbit (slow mode)  
0200H = 1Mbit  
0800H = 4Mbit  
(fast mode)  
(fast mode)  
2000H = 16Mbit (fast mode)  
25  
27  
Page Memory  
dram bank  
dram high  
(00)  
(40)  
start of page memory  
execute page table reset  
Page Table Reset  
reset page table  
reset ghost row status  
reset data service status  
reset cycle count  
reset memory count  
reset ghost count  
reset priorities  
clear rolling header  
clear VPS data  
clear WSS data  
42  
Reset Ghost Row Status  
ghost row status:  
bit0 = row 24 in cycle  
bit1 = row 25 in cycle  
bit2 = row 26 in cycle  
bit3 = row 27 in cycle  
bit4 = row 28 in cycle  
bit5 = row 29 in cycle  
bit6 = row 30 in cycle  
bit7 = row 31 in cycle  
38  
MICRONAS INTERMETALL  
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