NS7520B-1-C36 Digi International, NS7520B-1-C36 Datasheet - Page 265

• Manufacturer Part Number: NS7520B-1-C36
• Description: IC ARM MICROPROCESSOR 177BGA
• Manufacturer: Digi International
• Series: NET+ARM®r

Specifications of NS7520B-1-C36

• Applications: Network Processor
• Core Processor: ARM7
• Program Memory Type: External Program Memory
• Controller Series: -
• Ram Size: External
• Interface: EBI/EMI, Ethernet, DMA, SPI, UART
• Number Of I /o: 16
• Voltage - Supply: 1.4 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 177-LFBGA
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Register bit assignment
Table 93: Serial Channel Receive Character Gap Timer bit definition
D31
D30:10
D09:00
Bits
TRUN
15
31
30
14
N/A
R/W
R/W
Access
29
13
Reserved
28
12
TRUN
Reserved
CT
Mnemonic
27
11
26
10
25
9
0
N/A
0
Reset
24
8
Reserved
Enable timer to run
Set to 1 to allow the receive character gap timer to
operate.
N/A
CT value
The required value for the receive character timer is a
function of the channel bit-rate. It is recommended
that you set the character timer to a value that is 10
times the character period for the channel bit-rate. Use
this equation to define the recommended character
timer value:
CT RECOMMENDED =
[(10 * F
Description
w w w . d i g i e m b e d d e d . c o m
23
CT
7
XTALE
22
6
) / (bit-rate * 512)] - 1
21
5
S e r i a l C o n t r o l l e r M o d u l e
20
4
19
3
18
2
17
1
16
0
2 5 3