0W344-004-XTP ON Semiconductor, 0W344-004-XTP Datasheet - Page 16

• Manufacturer Part Number: 0W344-004-XTP
• Description: DSP BELASIGNA 200 AUDIO 52-NQFN
• Manufacturer: ON Semiconductor
• Series: BelaSigna® 200r
• Type: Fixed Pointr

Specifications of 0W344-004-XTP

• Interface: I²C, I²S, PCM, SPI, UART
• Clock Rate: 33MHz
• On-chip Ram: 42kB
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 52-TFQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Non-volatile Memory: -
• Voltage - I/o: -
• Voltage - Core: -

BelaSigna 200
6.0 Architecture Overview
6.1 RCore DSP
The RCore is a 16-bit fixed-point, dual-Harvard-architecture DSP. It includes efficient normalize and de-normalize instructions, plus
support for double-precision operations to provide the additional dynamic range needed for many applications. All memory locations in
the system are accessible by the RCore using several addressing modes including indirect and circular modes. The RCore generally
assumes master functionality of the system.
6.1.1. RCore DSP Architecture
The RCore is a single-cycle pipelined multiply-accumulate (MAC) architecture that feeds into a 40-bit accumulator complete with barrel
shifter for fast normalization and de-normalization operations. Program execution is controlled by a sequencer that employs a three-
stage pipeline (FETCH, DECODE, EXECUTE). Furthermore, the RCore incorporates pointer configuration registers for low cycle-count
address generation when accessing the three memories: program memory (PRAM), X data memory (XRAM) and Y data memory
(YRAM).
AE
Limiter
PH
X
AH
ALU
MU
PL
AL
Y
Internal Router
EXP
Shifter
Barrel
DCU
Rev. 16 | Page 16 of 43 | www.onsemi.com
ST
IMM/SIMM
Figure 9: RCore Programming Model
LC
0
Internal Router
LC
PCU
1
RE
PRAM
P
PC
CTRL
D_INT_STATUS
D_AUX_REG0
D_AUX_REG4
D_INT_EBL
D_SYS_CTRL
EXT3
P_Bus
X_Bus
Y_Bus
Data registers
R4
R5
R6
R7
R0
R1
R2
R3
Y_AGU
XRAM
YRAM
X_AGU
PCFG4
PCFG5
PCFG6
PCFG0
PCFG1
PCFG2