unicore UM981 User Manual

UM981 User Manual
6 Hardware UC-00-M33 EN R1.0
22 nm low power design, supporting all constellations and all frequencies with 1408
channels. It integrates a dual-core CPU, a high speed floating point processor and an
RTK co-processor, which can fulfill the high precision baseband processing and RTK
positioning on a single chip.
 External Interfaces
The external interfaces of UM981 include UART, I
2
C
*
, SPI
*
, CAN
*
, PPS, EVENT, RTK_STAT,
PVT_STAT, ERR_STAT, RESET_N, etc.
2 Hardware
2.1 Pin Definition
1 2 3 4
5 6
7 8 9
10 11 12 13 14
42
43
44
45
46
47
48
49
50
51
52
53
54
27
26
25
24
23
22
21
20
19
18
17
16
15
41 40 39 38
37 36
35 34 33
32 31 30 29 28
GND
ANT_IN
GND
ANT_DETECT
ANT_OFF
ANT_SHORT
_N
VCC_RF
SPIS_CSN
SPIS_MOSI
SPIS_CLK
SPIS_MISO
GND
GND
RSV
NC
NC
NC
NC
PVT_STAT
RTK_STAT
ERR_STAT
RSV
RSV
NC
NC
RXD2
TXD2
BIF BIF
TXD3 RXD3
GND VCC
VCC RSV
V_BCKP GND
NC NC
NC GND
TXD1
RXD1
SDA
SCL
NC
NC
GND
RESET_N
NC
EVENT
NC
PPS
NC
Top View
Figure 2-1 UM981 Pin Definition
*
I
2
C, SPI, CAN: reserved interfaces, not supported currently

unicore UM981 Specifications

General

Brand	unicore
Model	UM981
Category	Control Unit
Language	English