參數(shù)資料
型號(hào): STLC1502
廠商: 意法半導(dǎo)體
英文描述: VOICE OVER IP PROCESSOR
中文描述: IP語音處理器
文件頁數(shù): 6/81頁
文件大?。?/td> 526K
代理商: STLC1502
STLC1502
6/81
44
pxtalout
8.192 MHz crystal feedback
O
45
edmiclk
SDRAM feedback clock (input)
8mA
I/O
46
testarmclk
ARM clock in bypass mode
I
52
selarmfreq
Selects ARM PII Vco frequency
I
53
rstn
Asynchronous Master Reset Input
I
188
clkout
25MHz master clock out
4mA
O
Miscellaneous
47
bootsel_treqa
Boot selection: Select internal [1]
or external [0] booting ROM. If
proper test configuration has been
selected, then signal assumes Tic
request A functionality
I
118
hpisel
Select between HPI[1] or
GPIO_KBD IF [0]
I
Memory I/F (shared signals)
125, 126, 127, 129,
130, 131, 133, 134,
135, 136, 137, 138,
140, 141
add[0..13]
Memory address bus.
For Dynamic RAM, they are the
whole address, whereas for static,
they are the LSBits addresses. At
power up or hardware reset all
address values are 0
4mA
O
62, 63, 64, 65, 66, 69,
70, 71, 72, 73, 74, 75,
77, 78, 79, 81, 82, 84,
85, 86, 88, 89, 91, 92,
93, 95, 96, 98, 99,
100, 102, 103
data[0..31]
Memory data bus, to exchange
data between memory controller
and external memories
8mA
I/O
2, 3, 4, 5
wenbsn[0..3]
Write byte enable for external
static RAM or byte strobe for
dynamic external RAM
8mA
O
6
oen
Output enable for static/dynamic
external RAM. At power up or
hardware reset, the signal will be
asserted if the external booting
(bootsel = ‘1’) has been selected
8mA
O
ESM (specific controls)
142, 144, 145, 146,
148, 149, 150, 152
add[14..21]
Memory address bus’ MSBits.
They complete the ESM
addressability. A total of 4Mbyte
external (FLASH/SRAM) address
space is addressed by the
STLC1502 device. At the first fetch
of instruction after power_up or
hardware reset, all address values
are ‘0’
4mA
O
Pin
Pin Name
Pin Description/Note
Pin
Drive
Pin
Type
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