MT6595参考电路中的MT6261是干什么用的

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同题目MT6595参考电路中的MT6261是干什么用的

MT6595参考电路

GSM 用的

Thanks for share

MT6595里的基带处理部分不支持GSM吗?

MT6261作为GSM的MODEM。
MT6595只是一个AP。

MT6595不是由应用处理器和基带处理器组成的吗?

MD MCU subsystem

 ARM® Cortex-R4 processor with maximum 800 MHz operation frequency

 64KB I-cache, 64KB D-cache

 512KB TCM (tightly-coupled memory)

 Coresonic DSP for running LTE modem tasks, with maximum 300MHz operation frequency

 FD216 DSP for running modem/voice tasks, with maximum 250MHz operation frequency

 High-performance AXI and AHB bus

 General DMA engine and dedicated DMA channels for peripheral data transfer

 Watchdog timer for system error recovery

 Power management for clock gating control

ARM® Cortex-R4 processor 运行协议栈，DSP主要完成物理层的功能。我可能是一知半解，跪求解答！

Coresonic DSP for running LTE modem tasks, with maximum 300MHz operation frequency
这个并没有说GSM

Coresonic DSP for running LTE modem tasks, with maximum 300MHz operation frequency
FD216 DSP for running modem/voice tasks, with maximum 250MHz operation frequency
所以MT6595基带处理器Modem只支持3G/4G Modem,2G都是外置的?
百度百科上说“整合多模多频LTE调制解调器
其LTE modem支持LTE Release 9 Category 4版本，可提供上、下行分别高达50Mbit/s与150Mbit/s的数据传输速率。
除了能同时支持FDD-LTE和TD- LTE，亦支持DCDC-HSPA + (42Mbits/s)，TD-SCDMA, EDGE和GSM / GPRS的语音及数据通讯，其多模稳定兼容可使其终端产品在全球各地无缝隙衔接漫游、畅行无阻。
亦可搭配联发科技射频芯片，支持超过30个频段，符合全球电信运营商对于射频频段的要求”这么读着总觉得内置的Modem也支持2G。是不是MT6595这个芯片不同的型号对2G/3G/4GModem的支持是有选择性的，有的是都支持的，有的缺少对2G 的支持?

GSM一定要加MT6261

学习了！

谢谢你的耐心解答，可是我还是不是很明白，MT6595的数据手册里有这么一段：
1.2  MODEM Features
 LTE
-  FDD: up to 150 Mbps downlink, 50 Mbps uplink
-  TDD: up to 61 Mbps downlink, 18 Mbps uplink in 20 MHz
-  1.4 to 20 MHz RF bandwidth
-  2 × 2 downlink SU-MIMO; 4 × 2 downlink SU-MIMO
-  IPv6, QoS
-  Inter-RAT capabilities with HSPA+, EDGE, and applicable backward-compatible modes
-  SNOW3G/ZUC cipher offload engine
 3G UMTS FDD supported features
  3G modem supports most main features in 3GPP Release 7 and Release 8
  CPC (DTX in CELL_DCH, UL DRX DL DRX), HS-SCCH-less, HS-DSCH
  Dual cell operation
  MAC-ehs
  Two DRX (receiver diversity) schemes in URA_PCH and CELL_PCH
  Uplink Cat. 7 (16QAM), throughput up to 11.5Mbps
  Downlink Cat. 24 (64QAM, dual-cell HSDPA), throughput up to 42.2Mbps
  Fast dormancy
  ETWS
  Network selection enhancements
  TD-SCDMA
  CDMA/HSDPA/HSUPA baseband
  Supports TD-SCDMA Bands 34, 39 & 40 and Quad band GSM/EDGE
  Circuit-switched voice and data, and packet-switched data
  384/384Kbps class in UL/DL for TD-SCDMA
  TD-HSDPA: 2.8Mbps DL (Cat.14)
  TD-HSUPA: 2.2Mbps UL (Cat.6)
  F8/F9 ciphering/integrity protection
  Radio interface and baseband front-end
  High dynamic range delta-sigma ADC converts the downlink analog I and Q signals to digital
baseband
  10-bit D/A converter for Automatic Power Control (APC)
  Programmable radio Rx filter with adaptive gain control
  Dedicated Rx filter for FB acquisition
  Baseband Parallel Interface (BPI) with programmable driving strength
  Supports multi-band
 GSM modem and voice CODEC
  Dial tone generation
  Noise reduction
  Echo suppression
  Advanced sidetone oscillation reduction
  Digital sidetone generator with programmable gain
  Two programmable acoustic compensation filters
  GSM quad vocoders for adaptive multirate (AMR), enhanced full rate (EFR), full rate (FR) and
half rate (HR)
  GSM channel coding, equalization and A5/1, A5/2 and A5/3 ciphering
  GPRS GEA1, GEA2 and GEA3 ciphering
这样不是MT6595中内含GSM MODEM的意思吗?求解答