ST92F150CV1 STMicroelectronics, ST92F150CV1 Datasheet - Page 321

• Manufacturer Part Number: ST92F150CV1
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST92F150CV1

• Internal Memory: Single Voltage FLASH up to 256 Kbytes, RAM up to 8Kbytes, 1K byte E3 (Emulated EEPROM)
• Minimum Instruction Time: 83 ns (24 MHz int. clock)

J1850 BYTE LEVEL PROTOCOL DECODER (Cont’d)
10.9.7.2 Stacked Registers
See the description of the OPTIONS register to
obtain more information on the map of the regis-
ters of this section.
JBLPD RECEIVER DMA ADDRESS POINTER
REGISTER (RDAPR)
R252 - RSEL[3:0]=0000b
Register Page: 23
Reset Value: xxxx xxxx (xxh)
To select this register, the RSEL[3:0] bits of the
OPTIONS register must be reset
Bit 7:1 = RA[7:1] Receiver DMA Address Pointer.
RDAPR contains the address of the pointer (in the
Register File) of the Receiver DMA data source
when the DMA between the peripheral and the
Memory Space is selected. Otherwise, when the
DMA between the peripheral and Register File is
selected, this register has no meaning.
See
this register.
Bit 0 = PS Memory Segment Pointer Selector.
This bit is set and cleared by software. It is only
meaningful if RDCPR.RF/MEM = 1.
0: The ISR register is used to extend the address
1: The DMASR register is used to extend the ad-
JBLPD
COUNTER REGISTER (RDCPR)
R253 - RSEL[3:0]=0000b
Register Page: 23
Reset Value: xxxx xxxx (xxh)
To select this register, the RSEL[3:0] bits of the
OPTIONS register must be reset
Bit 7:1 = RC[7:1] Receiver DMA Counter Pointer.
RDCPR contains the address of the pointer (in the
RA7
RC7
of data received by DMA (see MMU chapter)
dress of data received by DMA (see MMU chap-
ter)
7
7
Section 10.9.6.2
RA6
RC6
RECEIVER
RA5
RC5
RC4
RA4
for more details on the use of
DMA
RC3
RA3
RA2
RC2
TRANSACTION
RA1
RC1
RF/MEM
PS
0
0
J1850 Byte Level Protocol Decoder (JBLPD)
Register File) of the DMA receiver transaction
counter when the DMA between Peripheral and
Memory Space is selected. Otherwise, if the DMA
between Peripheral and Register File is selected,
this register points to a pair of registers that are
used as DMA Address register and DMA Transac-
tion Counter.
See
more details on the use of this register.
Bit 0 = RF/MEM Receiver Register File/Memory
Selector.
If this bit is set to “1”, then the Register File will be
selected as Destination, otherwise the Memory
space will be used.
0: Receiver DMA with Memory space
1: Receiver DMA with Register File
JBLPD TRANSMITTER DMA ADDRESS POINT-
ER REGISTER (TDAPR)
R254 - RSEL[3:0]=0000b
Register Page: 23
Reset Value: xxxx xxxx (xxh)
To select this register, the RSEL[3:0] bits of the
OPTIONS register must be reset
Bit 7:1 = TA[7:1] Transmitter DMA Address Point-
er.
TDAPR contains the address of the pointer (in the
Register File) of the Transmitter DMA data source
when the DMA between the Memory Space and
the peripheral is selected. Otherwise, when the
DMA between Register File and the peripheral is
selected, this register has no meaning.
See
this register.
Bit 0 = PS Memory Segment Pointer Selector.
This bit is set and cleared by software. It is only
meaningful if TDCPR.RF/MEM = 1.
0: The ISR register is used to extend the address
1: The DMASR register is used to extend the ad-
TA7
of data transmitted by DMA (see MMU chapter)
dress of data transmitted by DMA (see MMU
chapter)
7
Section 10.9.6.2
Section
TA6
TA5
10.9.6.1and
TA4
for more details on the use of
TA3
Section 10.9.6.2
TA2
TA1
321/429
PS
0
for
9