Part number : QCA9531
Function : IEEE 802.11n 2×2 2.4 GHz SoC for advanced WLAN platforms.
Package : DRQFN 12 x 12 mm ( 156-pin )
Manufactures : Qualcomm ( https://www.qualcomm.com )
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Description
QCA9531 is a highly integrated and feature-rich IEEE 802.11n 2×2 2.4 GHz System-on-a-Chip (SoC) for advanced WLAN platforms.
It includes a MIPS 24Kc processor, one PCI Express 1.1 Root Complex interface, five port IEEE 802.3 Fast Ethernet Switch with MAC/PHY, one USB 2.0 MAC/PHY, and external memory interface for serial Flash, DDR1 or DDR2, UART, and GPIOs that can be used for LED controls or other general purpose interface configurations.
Features
1. MIPS 24Kc processor, 64KB I-Cache, 32KB D-Cache, clocked at up to 680MHz
2. Support 16bit DDR1, DDR2 (up to 600MT / s)
3. Supports SPI Flash
4. Integrated 5-port Fast Ethernet switch
5. With a PCI Express 1.1 Root Complex interfaces
6. With a USB 2.0 interface
7. Internal integrated RF front-end
8. integrated 1.2V DCDC converter
Qualcomm Atheros QCA9531-BL3A main features
https://www.qualcomm.com/products/qca9531
1. MIPS 24Kc processor, 64KB I-Cache, 32KB D-Cache, clocked at up to 680MHz
2. Support 16bit DDR1, DDR2 (up to 600MT / s)
3. Supports SPI Flash
4. Integrated 5-port Fast Ethernet switch
5. With a PCI Express 1.1 Root Complex interfaces
6. With a USB 2.0 interface
7. Internal integrated RF front-end
8. integrated 1.2V DCDC converter
QCA9531 internal functional block diagram
QCA9531 Datasheet PDF ( Qca9531-bl3a datasheet )
Reference site :
1. https://wikidevi.com/wiki/Qualcomm_Atheros
2. https://forum.openwrt.org/viewtopic.php?id=66526
3. Datasheet : https://github.com/Deoptim/atheros
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