MK30DN512ZVLK10 Freescale Semiconductor, MK30DN512ZVLK10 Datasheet - Page 422

• Manufacturer Part Number: MK30DN512ZVLK10
• Description: ARM Microcontrollers - MCU KINETIS 512K SLCD
• Manufacturer: Freescale Semiconductor

Specifications of MK30DN512ZVLK10

• Core: ARM Cortex M4
• Processor Series: K30
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 512 KB
• Data Ram Size: 128 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.71 V to 3.6 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: LQFP-80
• Mounting Style: SMD/SMT

Reset
Memory map/register definition
21.3.3 Enable Request Register (DMA_ERQ)
The ERQ register provides a bit map for the 16 implemented channels to enable the
request signal for each channel. The state of any given channel enable is directly affected
by writes to this register; it is also affected by writes to the SERQ and CERQ. The
{S,C}ERQ registers are provided so the request enable for a single channel can easily be
modified without needing to perform a read-modify-write sequence to the ERQ.
DMA request input signals and this enable request flag must be asserted before a
channel’s hardware service request is accepted. The state of the DMA enable request flag
does not affect a channel service request made explicitly through software or a linked
channel request.
Address: DMA_ERQ is 4000_8000h base + Ch offset = 4000_800Ch
422
Bit
W
R
Reserved
31
0
ERQ15
ERQ14
31–16
Field
SBE
DBE
Field
15
14
30
1
0
0
29
0
28
0
Source Bus Error
0
1
Destination Bus Error
0
1
This read-only field is reserved and always has the value zero.
Enable DMA Request 15
0
1
Enable DMA Request 14
0
1
27
0
No source bus error
The last recorded error was a bus error on a source read
No destination bus error
The last recorded error was a bus error on a destination write
The DMA request signal for the corresponding channel is disabled
The DMA request signal for the corresponding channel is enabled
The DMA request signal for the corresponding channel is disabled
The DMA request signal for the corresponding channel is enabled
26
0
25
0
24
0
K30 Sub-Family Reference Manual, Rev. 6, Nov 2011
0
DMA_ES field descriptions (continued)
23
0
22
0
DMA_ERQ field descriptions
21
0
Table continues on the next page...
20
0
19
0
18
0
17
0
16
0
15
0
Description
Description
14
0
13
0
12
0
11
0
10
0
0
9
0
8
Freescale Semiconductor, Inc.
0
7
0
6
0
5
4
0
0
3
0
2
0
1
0
0