sta8088ex STMicroelectronics, sta8088ex Datasheet - Page 18

• Manufacturer Part Number: sta8088ex
• Description: High Flexible Gps/galileo/glonass/qzss Receiver With Powerful Processing Arm9
• Manufacturer: STMicroelectronics

General description
3.3.1
18/29
Table 11.
AHB slaves
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Vectored Interrupt Controller (VIC)
This Vectored Interrupt Controller (VIC) allows the operative system interrupt handler to
quickly dispatch interrupt service routines in response to peripheral interrupts. It provides a
software interface to the interrupt system. There are up to 32 interrupt lines. The VIC uses a
bit position for each different interrupt source.
The software can control each request line to generate software interrupts. Each interrupt
line can be independently enabled and configured to trigger a non-vectored Normal
Interrupt Request (IRQ) or Fast Interrupt Request (FIQ) to the ARM946 CPU. Sixteen
interrupt lines can also be selected to trigger a vectored IRQ. The VIC has two operation
modes: the user mode and the privilege mode, in order to have the possibility to set (or not)
one level of protection during execution.
FS USB dual role controller
Full speed USB dual role with transceiver. It can work as a FS USB device if connected to a
USB HOST or it can work as a USB HOST when connected to a USB device. It is an AHB
slave. When active requires a 48 MHz clock USB_CLK.
FSMC external memory interface
16-bit non-muxed memory interface for burst NOR Flash and SRAM.
TCMcfg[2]
G3 APB port that allows interfacing with the G3BB acquisition memory and control
registers.
16 Kbytes ROM
Vectored Interrupt Controller (VIC).
FS USB OTG controller
FSMC external memory interface with NOR FLASH support
SQI Flash memory controller
2 x ARM946 APB peripheral bus (APB1, APB2).
0
0
0
0
1
1
1
1
TCM configuration
TCMcfg[1]
0
0
1
1
0
0
1
1
Doc ID 18357 Rev 1
TCMcfg[0]
0
1
0
1
0
1
0
1
112 KB
128 KB
144 KB
160 KB
176 KB
190 KB
80 KB
96 KB
ITCM
STA8088EX
176 KB
160 KB
144 KB
128 KB
112 KB
DTCM
96 KB
80 KB
64 KB