NS7520B-1-I46 Digi International, NS7520B-1-I46 Datasheet - Page 236
NS7520B-1-I46
Manufacturer Part Number
NS7520B-1-I46
Description
IC ARM MICROPROCESSOR 177BGA
Manufacturer
Digi International
Series
NET+ARM®r
Specifications of NS7520B-1-I46
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
NS7520B-1-I46
Manufacturer:
Digi International
Quantity:
10 000
Part Number:
NS7520B-1-I46
Manufacturer:
NETARM
Quantity:
20 000
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S e r i a l C h a n n e l r e g i s t e r s
Table 85: Serial Channel Control Register A
D29
D28
D27
D26
D25:24
D23
Bits
R/W
R/W
R/W
R/W
R/W
R/W
Access
N S 7 5 2 0 H a r d w a r e R e f e r e n c e , R e v G 9 / 2 0 0 7
STICKP
EPS
PE
STOP
WLS
CTSTX
Mnemonic
0
0
0
0
0
0
Reset
Stick parity
Can be used to force the UART parity field to a certain
state, as defined by the EPS field, instead of a parity
bit calculated against the data word. STICKP applies
only when the PE field is also set to 1.
Set the STICKP field to 1 to force transmission of the
static parity value.
Even parity select
0
1
Determines whether the serial channel uses odd or
even parity when calculating the parity bit in UART
mode. When the STICKP field is set, the EPS field
defines the static state for the parity bit.
Parity enable
When set, parity is enabled for the UAT transmitter
and receiver. The transmitter generates proper parity.
The receiver checks for proper parity. If the receiver
encounters a bad parity bit, the RPE field is set in
Serial Channel Status Register A.
Number of stop bits
0
1
Determines the number of stop bits in each UART
transmitter.
Data word length select
00
01
10
11
Determines the number of data bits in each UART
data word.
Enable the transmitter with active CTS
Supports hardware handshaking. When CTSTX is set,
the transmitter operates only when the external CTS
signal is in the active state. An external device can use
CTS to temporarily stall data transmission.
Description
Odd parity
Even parity
1 stop bit
1.5 stops for a 5-bit word, 2 stop bits for other
words.
5 bits
6 bits
7 bits
8 bits
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