ST92T163 ST Microelectronics, ST92T163 Datasheet - Page 137

• Manufacturer Part Number: ST92T163
• Description: 8/16-BIT FULL SPEED USB MCU FOR COMPOSITE DEVICES WITH 16 ENDPOINTS
• Manufacturer: ST Microelectronics

Figure 70. DMA buffers and related register file locations
8.3.3.3 Interrupt modes
Two interrupt modes are available: single vector,
where the application software has to poll the USB
registers to determine which event required its at-
tention, and multi-vector, where a specific interrupt
vector is used for each endpoint. Special support
is offered to isochronous transfers, implementing a
swapped DMA buffer usage.
Register File
R17
R16
R15
R14
R13
R12
R11
R10
R9
R8
R7
R6
R5
R4
R3
R2
R1
R0
REGISTER FILE LOCATIONS
COUNT1_RH
COUNT0_RH
COUNT1_RL
COUNT1_TH
COUNT0_RL
COUNT0_TH
COUNT1_TL
COUNT0_TL
ADDR2_TH
ADDR1_RH
ADDR1_TH
ADDR0_RH
ADDR0_TH
ADDR1_RL
ADDR0_RL
ADDR2_TL
ADDR1_TL
ADDR0_TL
8.3.3.4 Suspend mode
The unit can be placed in low-power mode (SUS-
PEND mode), by writing in a control register. At
this time, all static power dissipation is avoided,
except for the generation of the 3.3V supply for the
external pull-up resistor. The detection of activity
at the USB inputs while in low-power mode wakes
the device up asynchronously. A special interrupt
source, ESUSP, is connected directly to a wake-
up line so as to allow the ST9 to exit from HALT
condition.
ST92163 - USB PERIPHERAL (USB)
TRANSMISSION
TRANSMISSION
MEMORY AREA
BUFFER FOR
BUFFER FOR
ENDPOINT 1
ENDPOINT 0
BUFFER FOR
ENDPOINT 0
RECEPTION
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