UPD70F3771GF-GAT-AX Renesas Electronics America, UPD70F3771GF-GAT-AX Datasheet - Page 964

• Manufacturer Part Number: UPD70F3771GF-GAT-AX
• Description: MCU 32BIT V850ES/JX3-H 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Hr

Specifications of UPD70F3771GF-GAT-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 48MHz
• Connectivity: CAN, CSI, EBI/EMI, I²C, UART/USART, USB
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 2.85 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

V850ES/JG3-H, V850ES/JH3-H
R01UH0042EJ0400 Rev.4.00
Sep 30, 2010
(15) CAN0 module receive history list register (C0RGPT)
(a) Read
(b) Write
(a) Read
Notes 1. The read value of the RGPT0 to RGPT7 bits is invalid when the RHPM bit = 1.
RGPT7 to RGPT0
The C0RGPT register is used to read the receive history list.
After reset: xx02H
C0RGPT
C0RGPT
RHPM
ROVF
0
1
0
1
0 to 31
Note 2
Note 1
2. If all the receive history is read by the C0RGPT register while the ROVF bit is set (1), the RHPM bit
is not cleared (0) but kept set (1) even if newly received data is stored.
The receive history list has at least one message buffer number that has not been read.
The receive history list has no message buffer numbers that have not been read.
All the message buffer numbers that have not been read are preserved. All the numbers of the
message buffers in which a new data frame or remote frame has been received and stored are recorded
to the receive history list (the receive history list has a vacant element).
At least 23 entries have been stored since the host processor serviced the RHL last time (i.e. read
C0RGPT). The first 22 entries are sequentially stored whereas the last entry might have been
overwritten by newly received messages a number of times because all buffer numbers are stored at
position LIPT-1 when the ROVF bit is set to 1. As a consequence receptions cannot be completely
recovered in the order that they were received.
RGPT7
When the C0RGPT register is read, the contents of the element indexed by the receive history list
get pointer (RGPT) of the receive history list are read. These contents indicate the number of the
message buffer in which a data frame or a remote frame has been stored.
15
15
7
0
7
0
0
R/W
RGPT6
Address: 03FEC060H
14
14
6
0
0
6
0
RGPT5
13
13
5
0
0
5
0
Receive history list pointer match
Receive history list overflow bit
Receive history list read pointer
RGPT4
12
12
4
0
0
4
0
RGPT3
11
11
3
0
0
3
0
CHAPTER 20 CAN CONTROLLER
RGPT2
10
10
2
0
0
2
0
RGPT1
RHPM
9
1
9
0
1
0
Page 964 of 1509
RGPT0
ROVF
ROVF
Clear
8
0
8
0
0
(1/2)